The tails of most water animals serve to move them and to steer them.
(The tails of most water animals; serve; to move them and to steer them) Context(The tails of most water animals serve,List([0, 37))):(The tails of most water animals; serve to move; them) Context(The tails of most water animals serve,List([0, 37))):(The tails of most water animals; serve to to steer; them)
The tails of most water animals serve,List([0, 37)) The tails of most water animals serve,List([0, 37))
The tails of most water animals The tails of most water animals The tails of most water animals
serve serve to move serve to to steer
to move them and to steer them
them
them