on walk on emerald block:
    block above the event-block is stone pressure plate:
        wait 10 tick
        set block above the event-block to air
    {aooni::*} contains player:
        set block at location at 301, 52, -5 in "world" to redstone block
        wait 10 tick
        set block at location at 301, 52, -5 in "world" to air