"1991" . "Liverpool Walton by-election" . . "1991 Liverpool Walton by-election" . "1991-07-04" . . "'''Liverpool Walton by-election'''" . . "Walton by-election in 1991" . . . "1991 Liverpool Walton by-election" . "1991 Liverpool Walton by-election" . "subsequent by-election" . "1991 by-election" . . . . . "a by-election in 1991" . "By-election 1991" . "subsequent byelection" . "Liverpool Walton" . . "4 July 1991" . . "Liverpool Walton in 1991" .