**multiobj + stored bucket <=> multi-bucket** pickup/drop bucket

**multiobj + stored matches <=> multi-matches** pickup/drop matches

**multiobj + trashcan => multi-trashbag** pickup trashbag

**multiobj + vacuum_cleaner => multi-vacuum** pickup/drop vacuum cleaner
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**multi-bucket + faucet => multi-bucket(water)** fill bucket with water

**multi-bucket(water) + drain => multi-bucket** empty bucket of water



**multi-bucket + coalpile <=> multi-bucket(coal)** fill/empty bucket with coal

**multi-bucket(coal) + fireplace => multi-bucket** load fire with coal



**multi-bucket + ashpile => multi-bucket(ash)** pick up ash in bucket

**multi-bucket(ash) + dumpster => multi-bucket** empty ash bucket in dumpster



**multi-trashbag + incinerator => multiobj** dump trash in incinerator

**multi-matches + incinerator => multi-matches** light up the incinerator



**multi-bucket(water) + fireplace => multi-bucket** shut down fireplace

**multi-bucket(water) + incinerator => multi-bucket** shut down incinerator