( Conductivity ( ( is ( measured ( by ( ( an instrument ) ( called ( a ( ( ( solubridge or ) conductivity ) meter ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Conductivity)) (VP (VBZ is) (VP (VBN measured) (PP (IN by) (NP (NP (DT an) (NN instrument)) (VP (VBN called) (NP (DT a) (ADJP (JJ solubridge) (CC or) (JJ conductivity)) (NN meter))))))) (. .)))
Conductivity is measured by an instrument called a solubridge or conductivity meter .
(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)))) (. .)))