( Pheromones ( ( are ( substances ( ( one organism ) ( ( produces ( for ( purposes ( of chemo-communication ) ) ) ) ( with ( another ( of ( the ( same species ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Pheromones)) (VP (VBP are) (NP (NP (NNS substances)) (SBAR (S (NP (CD one) (NN organism)) (VP (VBZ produces) (PP (IN for) (NP (NP (NNS purposes)) (PP (IN of) (NP (NN chemo-communication))))) (PP (IN with) (NP (NP (DT another)) (PP (IN of) (NP (DT the) (JJ same) (NN species)))))))))) (. .)))
Pheromones are substances one organism produces for purposes of chemo-communication with another 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))))))))))) (. .)))