( Slope ( ( ( The slope ) ( of ( a line ) ) ) ( ( is ( ( a measure ) ( of ( ( how tilted ) ( ( the line ) is ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB Slope)) (NP (NP (DT The) (NN slope)) (PP (IN of) (NP (DT a) (NN line)))) (VP (VBZ is) (NP (NP (DT a) (NN measure)) (PP (IN of) (SBAR (WHADJP (WRB how) (JJ tilted)) (S (NP (DT the) (NN line)) (VP (VBZ is))))))) (. .)))
Slope The slope of a line is a measure of how tilted the line is.
(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)))) (. .)))