Piggydb Knowledge Example - If there's a gun on the mantel in Act I, it must go off in Act III

#22 If there's a gun on the mantel in Act I, it must go off in Act III 11 years ago (owner) 22 If there's a gun on ...
#2 "On Writing: A Memoir of the Craft" by Stephen King
"There's an old rule of theater that goes, "If there's a gun on the mantel in Act I, it must go off in Act III."" (#2 p.290)