( Pheromones ( ( are ( ( chemical substances ) ( that ( are ( ( released ( by ( ( insects or ) ( other organisms ) ) ) ) ( into ( the ( environment ( to ( communicate ( with ( others ( of ( the ( same species ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Pheromones)) (VP (VBP are) (NP (NP (NN chemical) (NNS substances)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBN released) (PP (IN by) (NP (NP (NNS insects)) (CC or) (NP (JJ other) (NNS organisms)))) (PP (IN into) (NP (DT the) (NN environment) (S (VP (TO to) (VP (VB communicate) (PP (IN with) (NP (NP (NNS others)) (PP (IN of) (NP (DT the) (JJ same) (NN species)))))))))))))))) (. .)))
Pheromones are chemical substances that are released by insects or other organisms into the environment to communicate with others of the same species.
(ROOT (S (NP (NNS Pheromones)) (VP (VBP are) (VP (VBN released) (PP (IN into) (NP (NP (DT the) (NN environment)) (PP (IN for) (NP (NP (NN communication)) (PP (IN between) (NP (NP (NNS animals)) (PP (IN of) (NP (DT the) (JJ same) (NN species))))))))))) (. .)))