"There may be more water on Europa than on all the oceans of the Earth", a lot considering that Europa is about the size of the Earth's moon.
(a lot; considering; that Europa is about the size of the Earth's moon) Context(a lot considering,List([73, 90))):(Europa; is; about the size of the Earth's moon)
a lot considering,List([73, 90))
a lot Europa
considering is
that Europa is about the size of the Earth's moon
about the size of the Earth's moon