( ( ( Research ( Notes ( Biology Termites ) ) ) ( use ( mothballs ( in ( their nests ) ) ) ) ) ( ( Formosan termites ) ( ( ( are ( insensitive ( to ( the naphthalene ) ) ) ) ( that ( they ( build ( into ( their ( tunnel walls ) ) ) ) ) ) ) . ) ) )
(ROOT (S (S (NP (NNP Research) (NNP Notes) (NNP Biology) (NNP Termites)) (VP (VBP use) (NP (NP (NNS mothballs)) (PP (IN in) (NP (PRP$ their) (NNS nests)))))) (NP (NNP Formosan) (NNS termites)) (VP (VBP are) (ADJP (JJ insensitive) (PP (TO to) (NP (DT the) (NN naphthalene)))) (SBAR (IN that) (S (NP (PRP they)) (VP (VBP build) (PP (IN into) (NP (PRP$ their) (NN tunnel) (NNS walls))))))) (. .)))
Research Notes Biology Termites use mothballs in their nests Formosan termites are insensitive to the naphthalene that they build into their tunnel walls.
(ROOT (S (NP (NNS Naphthalens)) (VP (VBZ is) (NP (NP (DT a) (NN chemical)) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (ADVP (RB commonly)) (VP (VBN used) (PP (IN in) (NP (NNS mothballs))))))))) (. .)))