For example at Yerkes, animals are kept in a large corral and obtain water by licking a valve which sometimes dribbles to form a puddle 1 or 2 feet in diameter.
(animals; are kept; L:in a large corral) (animals; obtain; water) (a valve; dribbles; to form a puddle 1 or 2 feet in diameter; T:sometimes) Context(a valve dribbles,List([86, 118))):(a valve; dribbles to form; a puddle)
a valve dribbles,List([86, 118))
animals animals a valve a valve
are kept obtain dribbles dribbles to form
L:in a large corral
water
to form a puddle 1 or 2 feet in diameter T:sometimes
a puddle