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5 couple square set, 5s in centre, 5a facing down, 5b facing up

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Figure 1

1-8
: 1s+2s+3s+4s circle 8H round & back **while** 5s turn RH, turn LH. 5a
  faces 1s, 5b faces 3s
9-16
: 5a+1s also 5b+3s dance RH across;  5a followed by 1s & 5b followed by 3s
  dance Snake Pass (all pass LSh). 5s end in centre LSh to partner
  between 2s & 4s
17-24
: 5a+2s also 5b+4s dance RH across; 5a followed by 2s & 5b followed by 4s
  dance Snake Pass (all pass LSh). 5s end in centre, 5a facing up, 5b
  facing down. (3) (4) (1) (2) 5

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Figure 2

25-28
: 3s+1s Adv+Ret **while** 5a/5b dance out passing 3L/1L LSh, cast
  round 1st/3rd place to face 4L/2L
29-32
: 4s+2s Adv+Ret **while** 5a/5b dance out passing 4L/2L LSh, cast
  round 1st/3rd place to face 3L/1L
33-40
: 5s repeat 25-32 to end with 1/2 turn LH into prom hold facing up 5a on
  right of 5b
41-48
: 5s set to 3s (at top), swivel right & repeat with 4s, then 1s & then 2s.
  End in centre facing up, 3s & 1s take prom hold
49-56
: 5s+3s+1s dance Promenade reel (5s RSh to 3s to start).  1s end in centre
  facing 2s (in 4th place)
57-64
: Repeat 49-56 with reel across with 2s & 4s (5s LSh to 2s to start).  5s
  end in centre facing each other (5b with back to top place)

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Figure 3

65-80
: Repeat 9-24 with LH across & Snake Pass passing RSh.  5s end in centre
  facing each other (5b with back to top place).  1 2 3 4 5
81-88
: All repeat 1-8 (5s may birl)