For example they help move carbon dioxide from the tissues into the lungs so it can be breathed out.
(it; can be breathed out; ) (they; help; move carbon dioxide from the tissues into the lungs so it can be breathed out) Context(they help,List([12, 21))):(they; help move; carbon dioxide; from the tissues into the lungs; so it can be breathed out)
they help,List([12, 21))
it they they
can be breathed out help help move
move carbon dioxide from the tissues into the lungs so it can be breathed out
carbon dioxide from the tissues into the lungs so it can be breathed out