( Ants ( ( secrete ( ( the ( formic acid ) ) ( for ( attack ( and ( defense purposes ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Ants)) (VP (VBP secrete) (NP (NP (DT the) (JJ formic) (NN acid)) (PP (IN for) (NP (NN attack) (CC and) (NN defense) (NNS purposes))))) (. .)))
Ants secrete the formic acid for attack and defense purposes.
(ROOT (S (NP (JJ Formic) (NN acid)) (VP (VBZ is) (VP (VBN found) (PP (IN in) (NP (NP (DT the) (NNS secretions)) (PP (IN of) (NP (JJ stinging) (NNS ants))))))) (. .)))