Mg_tip4pd.itp is empty?

[samlobe]

Is there a reason the file Mg_tip4pd.itp is empty while all the other Mg_ files like what I pasted below?
My guess is that it's supposed to be the same as below?

Thanks,
-Sam

[ moleculetype ]
; Name nrexcl
mMg 3
[ atoms ]
; nr type resnr residue atom cgnr charge mass typeB chargeB massB
1 mMg 1 mMg mMg 1 2 24.305

[ moleculetype ]
; Name nrexcl
nMg 3
[ atoms ]
; nr type resnr residue atom cgnr charge mass typeB chargeB massB
1 nMg 1 nMg nMg 1 2 24.305

[ moleculetype ]
; Name nrexcl
CXY 3
[ atoms ]
; nr type resnr residue atom cgnr charge mass typeB chargeB massB
1 CXY 1 CXY CXY 1 -1 35.45