By placing lenses inside of a tube, Galileo's primitive telescope allowed him to discover four moons revolving around the planet Jupiter.
(four moons; revolving; around the planet Jupiter) (Galileo's primitive telescope; allowed; him to discover four moons) Context(Galileo 's primitive telescope allowed,List([36, 73))):(him; to discover; four moons revolving around the planet Jupiter)
Galileo 's primitive telescope allowed,List([36, 73))
four moons Galileo's primitive telescope him
revolving allowed to discover
around the planet Jupiter
him to discover four moons
four moons revolving around the planet Jupiter