This indicates that the Earth has a big magnet inside it, and compasses work by their North Pole aligning with the Earth's South Magnetic Pole.
(the Earth; compasses; work) (their North Pole; aligning; with the Earth's South Magnetic Pole) (This; indicates; that the Earth has a big magnet inside it, and compasses work by their North Pole) Context(This indicates,List([0, 14))):(the Earth; has; a big magnet inside it)
This indicates,List([0, 14))
the Earth their North Pole This the Earth
compasses aligning indicates has
work
with the Earth's South Magnetic Pole
that the Earth has a big magnet inside it, and compasses work by their North Pole
a big magnet inside it