Pick up the item located at the cross-marked spot, maintain its elevation for 15 seconds, and then set it on the platform indicated by the supervisor.
###Human:
generate CIL (high level robotic commands) for the prompt Pick up the item located at the cross-marked spot, maintain its elevation for 15 seconds, and then set it on the platform indicated by the supervisor.

###assistant:
P:item1; P:platform; Mz:cross_marked_spot; Mo:#item1; G:1; D:15; Mz:#platform; G:0;