1-2
: 1s 1/2 turn RH moving down to the middle of the set in 2nd place (2s
  step up)
3-4
: 1s set, pull back RSh on bar 4 to face 1st corners
5-16
: 2s+1s+3s Dance to Corners & Set: (12 bars)

: Couple in middle change places with corners passing RSh, corners pass
  RSh in middle with a 1/4 turn to right to face next corner **while**
  supporting corners set (2 bars). Repeat 5 more times to end with
  corners in diagonally opposite place.

: At the end 1s pass LSh to face 3rd corner positions
17-20
: 1s + 1st corners dance 1/2 diagonal reel of 4. At the end 1s pass LSh to
  face 4th corner positions
21-24
: 1s + 2nd corners dance 1/2 diagonal reel of 4. 1s finish in 2nd place
  own sides
25-32
: 1L+2s also 1M+3s dance RH across; 1s pass RSh to dance LH across with
  other couple. 2 1 3