( ( Acid ( From ( ( Ants ( Formic acid ) ) ( -LRB- ( HCOOH -RRB- ) ) ) ) ) . )
(ROOT (S (VP (VBN Acid) (PP (IN From) (NP (NP (NNP Ants) (NNP Formic) (NN acid)) (PRN (-LRB- -LRB-) (NP (NNP HCOOH)) (-RRB- -RRB-))))) (. .)))
Acid From Ants Formic acid (HCOOH).
(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))))))) (. .)))