Io is one of four large moons discovered by Galileo in 1610 using one of the first telescopes ever built.
(Io; is; one of four large moons) (four large moons; discovered; by Galileo; T:in 1610) (the first telescopes; built; T:ever)
Io four large moons the first telescopes
is discovered built
one of four large moons
by Galileo T:in 1610
T:ever