{{explanation}}
5s in centre, 5M facing 2M, 5L facing 4M

1-4
: 5M+2s & 5L+4s dance 1/2 RH across (2 bars). 5s end on sides (2nd/4th
  place) as 2s+4s meet in centre & dance 1/2 LH across (2 bars)
5-8
: 5M+4s & 5L+2s dance 1/2 RH across (2 bars) & 5s turn 3/4 LH in centre to
  end 5M facing 3M & 5L facing 1M
9-16
: 5s turn corner, partner, corner, partner with 1st & 3rd couples
  (turning 1M/3M first)
17-20
: 5M dances 1/2 reel of 3 with Men in 4th+1st place as 5L dances 1/2 reel
  with Men in 2nd+3rd place (pass LSh to Men in 2nd & 4th place)
21-24
: 5M dances 1/2 reel of 3 with Ladies 1st+4th place as 5L dances 1/2 reel
  with Ladies 3rd+2nd place end facing partner in centre
25-32
: 5s set & 1/2 turn 2H to face 4th place (original 1st couple), 5s+1s
  dance 1/2 R&L to change places