execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ iron_grate 0 tp @s ~ ~-.1 ~
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ iron_grate 0 tp @s ~ ~-.1 ~
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_down 0 tp @s ~ ~-.1 ~
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_down 0 tp @s ~ ~-.1 ~
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_north 0 tp @s ~ ~ ~.1
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_north 0 tp @s ~ ~ ~.1
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_south 0 tp @s ~ ~ ~-.1
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_south 0 tp @s ~ ~ ~-.1
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_east 0 tp @s ~.1 ~ ~
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_east 0 tp @s ~.1 ~ ~
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_west 0 tp @s ~-.1 ~ ~
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_west 0 tp @s ~-.1 ~ ~
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_down_north 0 tp @s ~ ~ ~.1
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_down_north 0 tp @s ~ ~ ~.1
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_down_south 0 tp @s ~ ~ ~-.1
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_down_south 0 tp @s ~ ~ ~-.1
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_down_east 0 tp @s ~.1 ~ ~
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_down_east 0 tp @s ~.1 ~ ~
execute @e[type=item] ~ ~ ~ detect ~ ~ ~ item_tube_down_west 0 tp @s ~-.1 ~ ~
execute @e[type=item] ~ ~ ~ detect ~ ~-1 ~ item_tube_down_west 0 tp @s ~-.1 ~ ~