They soon found that the ability to taste PTC is an inherited trait.
(They; found; that the ability to taste PTC is an inherited trait; T:soon) Context(They found,List([0, 15))):(the ability to taste PTC; is; an inherited trait)
They found,List([0, 15))
They the ability to taste PTC
found is
that the ability to taste PTC is an inherited trait T:soon
an inherited trait