Deleting duplicate "Facts" category from the facts list

How does one delete a duplicate “Facts” category from the edit facts list. IE LDS sealing to parents and LDS sealPar which recognizes the BIC and one does not. OK, now I see the "Delete " at the top. When pressed it properly asks if I want to delete fact from the data base. With a “Yes” it then says that this fact is used several times. How do I generate a list of those individuals so that I can change the information to the program recognized fact category?

Publish-> All Reports & Charts->Fact List
List type->People with a fact type:
Fact type->(choose the fact type that doesn’t recognize the BIC)
Generate Report

Thank you very much! I was able to clean up my data base with your counsel. Thank you again, very much!!
Les