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Pour

Pour is the method used to empty out a liquid container or to pour
the contents of one container into another container.  Note for
pouring from one container to another, the containers must have
the same types of liquids or the container you are pouring the
liquid into must be empty.

> pour cup out

You empty a steel cup.

> pour skin cup

You pour the clear water into the cup.

See also:
Fill, Drink, Sip,