What is the minimum number of variables required to uniquely specify a row in genomicContexts?

[ramiromagno]

In a JSON response to /singleNucleotidePolymorphisms/{rs_id}, genomicContexts is one of the fields returned.

genomicContexts is an Array that can be straightforwardly mapped to a table (data table / data frame).

My question is: what makes each row of the putatively mapped table unique, i.e. what is minimal combination of variables (columns) that renders each row unique? source and distance maybe?

The motivation behind this question is the understanding of what makes a genomic context unique.

[cmalangone]

Please find more details about the status of this issue here:
https://www.ebi.ac.uk/panda/jira/browse/GOCI-2442