( Silicon ( ( is ( transparent ( to ( ( infrared light ) ( with ( wavelengths ( above ( ( about 1.1 ) micrometres ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Silicon)) (VP (VBZ is) (ADJP (JJ transparent) (S (VP (TO to) (VP (VB infrared) (NP (NN light)) (PP (IN with) (NP (NP (NNS wavelengths)) (PP (IN above) (NP (QP (RB about) (CD 1.1)) (NNS micrometres)))))))))) (. .)))
Silicon is transparent to infrared light with wavelengths above about 1.1 micrometres.
(ROOT (S (NP (NP (NNP Light)) (PP (IN with) (NP (DT the) (JJS longest) (NNS wavelengths)))) (VP (VBZ is) (VP (VBN called) (NP (JJ infrared) (NN light)))) (. .)))