{{explanation}}
Start 5s in centre facing 1s

1-8
: 1s+5s dance 1/2 R&L, 1L+2s also 1M+4s dance RH across to end 1s facing
  each other in middle - Man facing down, Lady up
9-16
: 1s set & 1/2 turn RH, 1M+3s also 1L+5s dance LH across ending 1s passing
  LSh to 1M facing 4M & 1L facing 2M
17-24
: 1M+4M+2L also 1L+2M+4L: LSh reels of 3 across ending in lines of 3
  across BtoB facing top & bottom couples
25-32
: All set & advance 2 steps (5s+3s under arches), all set turning about &
  dance back under arches
33-40
: 1s turn RH & LH in centre **while** other cpls turn RH & chase clockwise
  3/4 way round (M leading) to end 2 3 4 5 with 1s in centre facing 2s
  in top pl