How to convert G1, G2, G3 obtained after merge into normal gene names

[tky199996]

I want to annotate G1 and G2 into normal gene names. I just started using tama_merge.py -f file.list -d merge_dup -s ensembl, but it seems to be wrong, because in the result file I get, gene The name changed to ensemble_G1, but what I need is to know the normal gene names of G1 and G2 genes originally

in ensemble.