Norway maple, for example, is a tree that produces many keys which out-compete native maples, Charlton said.
(a tree; produces; many keys which out-compete native maples) (many keys; out compete; native maples) (Norway maple, for example, is a tree; said; Charlton) Context(Norway maple , for example , is a tree said,List([0, 107))):(Norway maple; is; a tree that produces many keys)
Norway maple , for example , is a tree said,List([0, 107))
a tree many keys Norway maple, for example, is a tree Norway maple
produces out compete said is
many keys which out-compete native maples
native maples
Charlton
a tree that produces many keys