In previous times, telescopes were used to collect faint light and allow the observer to see with greater detail and sensitivity.
(telescopes; were used; to collect faint light and allow the observer to see with greater detail and sensitivity; T:In previous times) (telescopes; to collect; faint light) (telescopes; to allow; the observer to see with greater detail and sensitivity) Context(telescopes to allow,List([19, 72))):(the observer; to see; )
telescopes to allow,List([19, 72))
telescopes telescopes telescopes the observer
were used to collect to allow to see
to collect faint light and allow the observer to see with greater detail and sensitivity T:In previous times
faint light
the observer to see with greater detail and sensitivity