["s6-p9","s13-q15","h6-k9","o16-p17","r3-r16","r19-r18","r15-r16","s19-r18","s15-r16","h15-k12","p9-m12","h18-h8","h3-h6","h9-h8","h5-i6","h9-g8","m12-l13","g8-h7","k13-k16"]