( ( Compound microscopes ) ( ( ( are usually ) ( ( used ( with ( transmitted light ) ) ) ( to ( look ( at ( transparent specimens ) ) ) ) ) ) ; ) )
(ROOT (S (NP (JJ Compound) (NNS microscopes)) (VP (VBP are) (ADVP (RB usually)) (VP (VBN used) (PP (IN with) (NP (JJ transmitted) (NN light))) (S (VP (TO to) (VP (VB look) (PP (IN at) (NP (JJ transparent) (NNS specimens)))))))) (: ;)))
Compound microscopes are usually used with transmitted light to look at transparent specimens;
(ROOT (S (NP (JJ Transparent) (NN matter)) (VP (VBZ transmits) (ADJP (JJ light) (PP (IN without) (S (VP (VBG scattering) (NP (PRP it))))))) (. .)))