하루에 하나씩.
논문도 써야하고 아 바뻐라.
오늘은 일단 이것만 외우자.

Utility s “Example”
(
     rollout test1 “test1”
      ( label lb “Rollout1 is open” )
     rollout test2 “test2”
      ( label lb “Rollout2 is open” )
     rollout test3 “test3”
      ( label lb “Rollout3 is open” )

     Button B1"rollout1"
     Button B2"rollout2"
     Button B3"rollout3"

     on B1 pressed do addrollout test1
     on B2 pressed do addrollout test2
     on B3 pressed do addrollout test3
)