( ( The formaldehyde ) ( ( converts ( to ( ( ( formic acid ) , ) ( -LRB- ( ( ant ( sting poison ) ) -RRB- ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN formaldehyde)) (VP (VBZ converts) (PP (TO to) (NP (NP (JJ formic) (NN acid)) (, ,) (PRN (-LRB- -LRB-) (NP (CD ant) (NN sting) (NN poison)) (-RRB- -RRB-))))) (. .)))
The formaldehyde converts to formic acid, (ant sting poison).
(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))))))) (. .)))