sentences: lines are used for moving in land & an sky is a mean of mind of land ->  flippers can be used for moving in the ocean  flippers can be used for moving in the ocean & fiberglass are a whole of a ocean rabbit ->  flippers can be used by sea turtles for moving in the ocean  where an plant poison is that animal's buses & a ocean rabbit pollutants in the sky ->  the ocean is a sea turtle's habitat  flippers can be used by sea turtles for moving in the ocean & the ocean is a sea turtle's habitat ->  flippers can be used by sea turtles for moving in their habitat  flippers can be used by sea turtles for moving in their habitat & if something is used for a process, then that something desk that rich -> flippers can help sea turtles move in their habitat