Researchers say they may have been used to catch prey such as fish, snakes and lizards.
(they; to catch; prey) (Researchers; say; they may have been used to catch prey such as fish, snakes and lizards) Context(Researchers say,List([0, 15))):(they; may have been used; to catch prey such as fish, snakes and lizards)
Researchers say,List([0, 15))
they Researchers they
to catch say may have been used
prey
they may have been used to catch prey such as fish, snakes and lizards
to catch prey such as fish, snakes and lizards