It is a substance that taps the energy (of sunlight) which plants need to make their own food.
(It; is; a substance that taps the energy (of sunlight)) (a substance; taps; the energy (of sunlight) which plants need to make their own food) (which plants; need; to make their own food) Context(which plants need,List([53, 70))):(which plants; need to make; their own food)
which plants need,List([53, 70))
It a substance which plants which plants
is taps need need to make
a substance that taps the energy (of sunlight)
the energy (of sunlight) which plants need to make their own food
to make their own food
their own food