Through photosynthesis, a process which requires light, green plants are able to reverse this process by taking in carbon dioxide and produce more oxygen than they require to live.
(a process; requires; ) (they; require; to live) Context(they require,List([159, 171))):(they; require to live to live; ) (light, green plants; are; able to reverse this process by taking in carbon dioxide and produce more oxygen) (light, green plants; to reverse; this process) (light, green plants; to produce; more oxygen than they require to live)
they require,List([159, 171))
a process they they light, green plants light, green plants light, green plants
requires require require to live to live are to reverse to produce
to live
able to reverse this process by taking in carbon dioxide and produce more oxygen
this process
more oxygen than they require to live