They start out as gilled, swimming tadpoles, but grow to be air-breathing adults.
(They; grow; to be air-breathing adults) (They; to be; air-breathing adults) (They; start out; ) Context(They start out,List([0, 14))):(They; start out swimming; tadpoles)
They start out,List([0, 14))
They They They They
grow to be start out start out swimming
to be air-breathing adults
air-breathing adults
tadpoles