( ( ( Angle ( and ( slope-distance measurements ) ) ) ( to ( the bulge ) ) ) ( ( indicated ( it ( was ( growing ( at ( ( ( a rate ) ( of ( ( ( ( up to ) five ) feet ) ( -LRB- ( ( 1.5 meters ) -RRB- ) ) ) ) ) ( per day ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Angle) (CC and) (JJ slope-distance) (NNS measurements)) (PP (TO to) (NP (DT the) (NN bulge)))) (VP (VBD indicated) (SBAR (S (NP (PRP it)) (VP (VBD was) (VP (VBG growing) (PP (IN at) (NP (NP (DT a) (NN rate)) (PP (IN of) (NP (NP (QP (IN up) (TO to) (CD five)) (NNS feet)) (PRN (-LRB- -LRB-) (NP (CD 1.5) (NNS meters)) (-RRB- -RRB-)))) (PP (IN per) (NP (NN day)))))))))) (. .)))
Angle and slope-distance measurements to the bulge indicated it was growing at a rate of up to five feet (1.5 meters) per day.
(ROOT (S (NP (NP (NNP Instruments)) (SBAR (WHNP (WDT that)) (S (VP (VB measure) (NP (NP (DT the) (NN angle)) (PP (IN of) (NP (NP (DT the) (NN slope)) (PP (IN of) (NP (DT a) (NN volcano)))))))))) (VP (VBP are) (VP (VBN called) (NP (NN tilt) (NNS meters)))) (. .)))