We now know that trees change color as a result of chemical precesses.
(We; know; that trees change color as a result of chemical precesses; T:now) Context(We know,List([0, 11))):(trees; change; color; as a result of chemical precesses)
We know,List([0, 11))
We trees
know change
that trees change color as a result of chemical precesses T:now
color as a result of chemical precesses