if {blue_team.%player%} is set:
    wait 7 seconds
    execute player command "give @s blue_wool{CanPlaceOn:["minecraft:gold_block"]}"
if {red_team.%player%} is set:
    wait 7 seconds
    execute player command "give @s red_wool{CanPlaceOn:["minecraft:gold_block"]}"
if {green_team.%player%} is set:
    wait 7 seconds
    execute player command "give @s green_wool{CanPlaceOn:["minecraft:gold_block"]}"

여기서 give 구문을 다 이해할 수 없다고 뜨네요 문제가 뭘까요?