diff --git a/stix2/datastore/relational_db/table_creation.py b/stix2/datastore/relational_db/table_creation.py
index 79e61397..fc3e6b5d 100644
--- a/stix2/datastore/relational_db/table_creation.py
+++ b/stix2/datastore/relational_db/table_creation.py
@@ -343,35 +343,44 @@ def generate_table_information(self, name, metadata, schema_name, table_name, is
             nullable=False,
         ),
     )
-    if len(self.valid_types) == 1:
-        if not isinstance(self.valid_types[0], ListProperty):
-            columns.append(
-                Column(
-                    "value",
-                    # its a class
-                    determine_sql_type_from_class(self.valid_types[0]),
-                    nullable=False,
-                ),
-            )
+    if self.valid_types:
+        if len(self.valid_types) == 1:
+            if not isinstance(self.valid_types[0], ListProperty):
+                columns.append(
+                    Column(
+                        "value",
+                        # its a class
+                        determine_sql_type_from_class(self.valid_types[0]),
+                        nullable=False,
+                    ),
+                )
+            else:
+                contained_class = self.valid_types[0].contained
+                columns.append(
+                    Column(
+                        "value",
+                        # its an instance, not a class
+                        ARRAY(contained_class.determine_sql_type()),
+                        nullable=False,
+                    ),
+                )
         else:
-            contained_class = self.valid_types[0].contained
-            columns.append(
-                Column(
-                    "value",
-                    # its an instance, not a class
-                    ARRAY(contained_class.determine_sql_type()),
-                    nullable=False,
-                ),
-            )
+            for column_type in self.valid_types:
+                sql_type = determine_sql_type_from_class(column_type)
+                columns.append(
+                    Column(
+                        determine_column_name(column_type),
+                        sql_type,
+                    ),
+                )
     else:
-        for column_type in self.valid_types:
-            sql_type = determine_sql_type_from_class(column_type)
-            columns.append(
-                Column(
-                    determine_column_name(column_type),
-                    sql_type,
-                ),
-            )
+        columns.append(
+            Column(
+                "value",
+                Text,
+                nullable=False,
+            ),
+        )
     return [
         Table(
             canonicalize_table_name(table_name + "_" + name),
@@ -383,6 +392,9 @@ def generate_table_information(self, name, metadata, schema_name, table_name, is
     ]
 
 
+
+
+
 @add_method(EmbeddedObjectProperty)
 def generate_table_information(self, name, metadata, schema_name, table_name, is_extension=False, is_list=False, **kwargs):  # noqa: F811
     level = kwargs.get("level")
diff --git a/stix2/datastore/relational_db/utils.py b/stix2/datastore/relational_db/utils.py
index 0ae0bf4e..6f2fc778 100644
--- a/stix2/datastore/relational_db/utils.py
+++ b/stix2/datastore/relational_db/utils.py
@@ -52,10 +52,20 @@ def canonicalize_table_name(table_name, schema_name=None):
     return inflection.underscore(full_name)
 
 
+_IGNORE_OBJECTS = [ "language-content"]
+
+
 def get_all_subclasses(cls):
     all_subclasses = []
 
     for subclass in cls.__subclasses__():
+        # This code might be useful if we decide that some objects just cannot have there tables
+        # automatically generated
+        
+        # if hasattr(subclass, "_type") and subclass._type in _IGNORE_OBJECTS:
+        #     print(f'It is currently not possible to create a table for {subclass._type}')
+        #     return []
+        # else:
         all_subclasses.append(subclass)
         all_subclasses.extend(get_all_subclasses(subclass))
     return all_subclasses
@@ -122,37 +132,39 @@ def flat_classes(class_or_classes):
         yield class_or_classes
 
 
-def determine_sql_type_from_class(cls):  # noqa: F811
-    if cls == BinaryProperty:
+def determine_sql_type_from_class(cls_or_inst):  # noqa: F811
+    if cls_or_inst == BinaryProperty or isinstance(cls_or_inst, BinaryProperty):
         return LargeBinary
-    elif cls == BooleanProperty:
+    elif cls_or_inst == BooleanProperty or isinstance(cls_or_inst, BooleanProperty):
         return Boolean
-    elif cls == FloatProperty:
+    elif cls_or_inst == FloatProperty or isinstance(cls_or_inst, FloatProperty):
         return Float
-    elif cls == HexProperty:
+    elif cls_or_inst == HexProperty or isinstance(cls_or_inst, HexProperty):
         return LargeBinary
-    elif cls == IntegerProperty:
+    elif cls_or_inst == IntegerProperty or isinstance(cls_or_inst, IntegerProperty):
         return Integer
-    elif cls == StringProperty or cls == ReferenceProperty:
+    elif (cls_or_inst == StringProperty or cls_or_inst == ReferenceProperty or
+          isinstance(cls_or_inst, StringProperty)  or isinstance(cls_or_inst, ReferenceProperty)):
         return Text
-    elif cls == TimestampProperty:
+    elif cls_or_inst == TimestampProperty or isinstance(cls_or_inst, TimestampProperty):
         return TIMESTAMP(timezone=True)
-    elif cls == Property:
+    elif cls_or_inst == Property or isinstance(cls_or_inst, Property):
         return Text
 
 
-def determine_column_name(cls):  # noqa: F811
-    if cls == BinaryProperty:
+def determine_column_name(cls_or_inst):  # noqa: F811
+    if cls_or_inst == BinaryProperty or isinstance(cls_or_inst, BinaryProperty):
         return "binary_value"
-    elif cls == BooleanProperty:
+    elif cls_or_inst == BooleanProperty or isinstance(cls_or_inst, BooleanProperty):
         return "boolean_value"
-    elif cls == FloatProperty:
+    elif cls_or_inst == FloatProperty or isinstance(cls_or_inst, FloatProperty):
         return "float_value"
-    elif cls == HexProperty:
+    elif cls_or_inst == HexProperty or isinstance(cls_or_inst, HexProperty):
         return "hex_value"
-    elif cls == IntegerProperty:
+    elif cls_or_inst == IntegerProperty or isinstance(cls_or_inst, IntegerProperty):
         return "integer_value"
-    elif cls == StringProperty or cls == ReferenceProperty:
+    elif (cls_or_inst == StringProperty or cls_or_inst == ReferenceProperty or
+          isinstance(cls_or_inst, StringProperty)  or isinstance(cls_or_inst, ReferenceProperty)):
         return "string_value"
-    elif cls == TimestampProperty:
+    elif cls_or_inst == TimestampProperty or isinstance(cls_or_inst, TimestampProperty):
         return "timestamp_value"