Pool robots are swimmers who just jump in and start swimming, like a big toy with fresh batteries, plodding mechanically up and down and up and down.
(Pool robots; are; swimmers who just jump in and start swimming, like a big toy with fresh batteries,) (swimmers; just jump; in) (swimmers; start; swimming) (a big toy with fresh batteries; plodding mechanically; )
Pool robots swimmers swimmers a big toy with fresh batteries
are just jump start plodding mechanically
swimmers who just jump in and start swimming, like a big toy with fresh batteries,
in
swimming