A friend said that he heard they eat the tadpoles of red-eyed tree frogs.
(A friend; said; that he heard they eat the tadpoles of red-eyed tree frogs) Context(A friend said,List([0, 13))):(he; heard; they eat the tadpoles of red-eyed tree frogs) Context(A friend said he heard,List([0, 27))):(they; eat; the tadpoles of red-eyed tree frogs)
A friend said,List([0, 13)) A friend said he heard,List([0, 27))
A friend he they
said heard eat
that he heard they eat the tadpoles of red-eyed tree frogs
they eat the tadpoles of red-eyed tree frogs
the tadpoles of red-eyed tree frogs