tellraw @a {"nbt": "Items[{Slot:15b}]", "entity": "@s"}
#get the output
execute if score @s craft_dimens_x matches 3 if score @s craft_dimens_y matches 3 run loot replace entity @e[type=minecraft:chest_minecart,limit=1,sort=nearest] container.15 fish gaeacraft:recipes/crafting_table/3x3 ~ ~ ~ mainhand
