( ( ( ( ( ( Once ingested ) ( the methanol ) ) , ) ( wood alcohol ) ) , ) ( ( ( converts ( to ( ( ( ( ( formaldehyde , ) and ) then ) ( formic acid ) ) ( -LRB- ( ( ant ( sting poison ) ) -RRB- ) ) ) ) ) ( causing ( metabolic acidosis ) ) ) . ) )
(ROOT (S (NP (NP (ADJP (RB Once) (JJ ingested)) (DT the) (NN methanol)) (, ,) (NP (NN wood) (NN alcohol)) (, ,)) (VP (VBZ converts) (PP (TO to) (NP (NP (NN formaldehyde)) (, ,) (CC and) (RB then) (NP (JJ formic) (NN acid)) (PRN (-LRB- -LRB-) (NP (CD ant) (NN sting) (NN poison)) (-RRB- -RRB-)))) (S (VP (VBG causing) (NP (JJ metabolic) (NNS acidosis))))) (. .)))
Once ingested the methanol, wood alcohol, converts to formaldehyde, and then formic acid (ant sting poison) causing metabolic acidosis.
(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))))))) (. .)))