Minecraft wiki entry for Block_entity_format, associated text: : The block entity's root tag.
 forceunpair: (May not exist) True if this chest is unpair with chest next to it.
 pairlead: (May not exist) Unknown.
 pairx: (May not exist) The X position of the chest paired with.
 pairz: (May not exist) The Z position of the chest paired with.
 Findable: Unknown.
 LootTable: (May not exist) Loot table to be used to fill the chest when it is next opened, or the items are otherwise interacted with.
 LootTableSeed: (May not exist) Seed for generating the loot table. 0 or omitted use a random seed.
 Items: List of items in this container.
: An item, including the slot tag.
 Slot: The inventory slot the item is in.
Tags common to item stack[show]