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What is 1 + 3?
a four-sided enclosure, usually surrounded by buildings
one out of four equal parts of a circle
happening every four years
a muscle group consisting of four muscles that is located along the front of the thigh
a plane figure in geometry that has four sides
the ability to speak four languages
to cut or divide into four equal parts
an animal with four feet
to create four times as much or as many of something
a collection or group of four