"2016 Bukit Batok by-election" . "2016 by-election" . . . . . "by-election" . "Bukit Batok by-election" . . "Bukit Batok By-Election" . . . "2016 Bukit Batok by-election" . "2016" . "resignation of" . . "2016-05-07" . "Parliament by-election" . "Bukit Batok by-election, 2016" . . "by-election held in 2016" . "Bukit Batok SMC" . . "2016 Bukit Batok by-election#Candidates" . . . . "By-election 2016" .