{{explanation}}
2c is dancing couple, corners refer to 1c and 3c positions

1–
: 2c turn ¾ RH | 1c+2W & 2M+3c ½ LHA ; 2M&2W cast left round their 1cnr pos. to face 1cnr pos. **while{4}** 1c+3c ½ R&L starting along sidelines (to 3, 2x,1)
9–
: 2W+3M & 2M+1W (1cnr pos) ½ LH turn | 1W+3M ½ RH turn **while{2}** 2c set ; 2W+1W & 2M+3M ½ LH turn | 2c RH turn to face 2cnr pos. **while{2}** 1W+3M set
17–
: Repeat figure with 3W & 1M (i.e. 2cnr positions), finish (1x,2,3x)
25–
: 1c+2c ½ RHA | 1c+3c ½ LHA ; 2c turn RH 1½ **while{4}** 1c turn LH 1½ (to 2,3,1)