He saw that the north poles of two magnets when brought together would repel.
(He; saw; that the north poles of two magnets when brought together would repel) Context(He saw,List([0, 6))):(the north poles of two magnets; would repel; )
He saw,List([0, 6))
He the north poles of two magnets
saw would repel
that the north poles of two magnets when brought together would repel