Is it possible to have a pool give two different items 100% of the time? What I mean by this is, say there are two pools. The first pool has one item (coal) and the second pool has two different items (3 iron ingots and 2 sticks). Would it be possible for if the second pool was chosen, both items would be given 100% of the time instead of there being a chance of giving 6 ingots or 4 sticks?