To get to 4 gallons in the 5-gallon jug, follow these steps:
Fill the 5 jug. 
Empty it into the 3 jug so it has 2 gallons left.
Empty the 3 jug.
Pour the content of the 5 jug into it so it now has the 2 gallons.
Fill the 5 jug again and use that to fill the 3 jug which only takes 1 gallon this time.
Now the 5 jug has 4 gallons remaining.
It would be easier to grasp if illustrated or demonstrated.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence