They perturb (in conjunction with the observer temperature) every small-mass object to be observed.
(They; perturb; every small-mass object to be observed) Context(They perturb,List([0, 12))):(every small-mass object; to be observed; )
They perturb,List([0, 12))
They every small-mass object
perturb to be observed
every small-mass object to be observed