( ( ( Boiling point ) ( at ( ( reduced pressure ) ( -LRB- ( ( T boil ) -RRB- ) ) ) ) ) . )
(ROOT (NP (NP (VBG Boiling) (NN point)) (PP (IN at) (NP (NP (JJ reduced) (NN pressure)) (PRN (-LRB- -LRB-) (NP (NNP T) (NNP boil)) (-RRB- -RRB-)))) (. .)))
Boiling point at reduced pressure (T boil ).
(ROOT (S (NP (NNP External) (NN pressure)) (VP (VBZ affects) (NP (NP (DT the) (JJ boiling) (NN point)) (PP (IN of) (NP (NN water))))) (. .)))