Gary is not Anne's uncle. Fiona is not the grandfather of Gary. Dave is smart if Erin is not Anne's aunt. If Charlie is not Fiona's father then Anne is blue. The sister of Gary is Dave if Gary is not the uncle of Anne. If Dave is Gary's sister then The aunt of Anne is not Erin. If Dave is smart and The grandfather of Gary is Fiona then The father of Fiona is not Charlie.