( ( ( The probe ) ( located ( ( The instrumentation ) ( was ( ( a ( sprung probe ) ) ( which ( tilts ( ( as the ) ( near ( ( the top ) ( of ( the slope ) ) ) ) ) ) ) ) ) ) ) ) ( ( ( was ( approximately ( 20 meters ) ) ) ( snow moves ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN probe)) (VP (VBN located) (SBAR (S (NP (DT The) (NN instrumentation)) (VP (VBD was) (NP (NP (DT a) (JJ sprung) (NN probe)) (SBAR (WHNP (WDT which)) (S (VP (VBZ tilts) (NP (NP (RB as) (DT the)) (PP (IN near) (NP (NP (DT the) (NN top)) (PP (IN of) (NP (DT the) (NN slope))))))))))))))) (VP (VBD was) (ADVP (RB approximately) (NP (CD 20) (NNS meters))) (NP (NN snow) (NNS moves))) (. .)))
The probe located The instrumentation was a sprung probe which tilts as the near the top of the slope was approximately 20 meters snow moves.
(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)))) (. .)))