This allows low oxygen blood to go to the lungs where it can be oxygenated.
(it; can be oxygenated; L:the lungs) (This; allows; low oxygen blood to go to the lungs) Context(This allows,List([0, 11))):(low oxygen blood; to go; to the lungs)
This allows,List([0, 11))
it This low oxygen blood
can be oxygenated allows to go
L:the lungs
low oxygen blood to go to the lungs
to the lungs