Right, it's a thermometer, and that's what we call the instrument we use to measure temperature.
(it; 's; a thermometer) (that; 's; what we call the instrument) Context(that 's,List([31, 37))):(we; call; the instrument we use to measure temperature) (the instrument; use; to measure temperature) Context(the instrument use,List([51, 72))):(we; to measure; temperature)
that 's,List([31, 37)) the instrument use,List([51, 72))
it that we the instrument we
's 's call use to measure
a thermometer
what we call the instrument
the instrument we use to measure temperature
to measure temperature
temperature