Anne is not green. Harry is the uncle of Erin. If The uncle of Erin is Harry then Erin is young. The brother of Anne is Harry if The grandmother of Fiona is not Erin. If Bob is Dave's mother then Harry is not the brother of Anne. If Erin is not Fiona's grandmother then The sister of Gary is not Charlie. If Erin is not Fiona's grandmother then Erin is cold. If Gary is not Charlie's grandmother then Erin is green. If Erin is not Fiona's grandmother then Erin is not green. Bob is Dave's mother if Harry is nice. Harry is nice if Anne is not green. If Harry is not Anne's brother then Charlie is Gary's sister. Gary is Charlie's grandmother if Erin is cold. The grandmother of Charlie is Gary if Harry is not the brother of Anne.