( Ground ( : ( ( ( A ground ) ( happens ( when ( ( one ( or ( more conductors ) ) ) ( touch ( ( the earth ) ( causing ( the ( electricity ( to ( ( flow out ) ( ( ( of ( the circuit ) ) and ) ( into ( the earth ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (FRAG (NP (NNP Ground)) (: :) (S (NP (DT A) (NN ground)) (VP (VBZ happens) (SBAR (WHADVP (WRB when)) (S (NP (CD one) (CC or) (JJR more) (NNS conductors)) (VP (VB touch) (NP (NP (DT the) (NN earth)) (VP (VBG causing) (NP (DT the) (NN electricity) (S (VP (TO to) (VP (VB flow) (PRT (RP out)) (PP (PP (IN of) (NP (DT the) (NN circuit))) (CC and) (PP (IN into) (NP (DT the) (NN earth))))))))))))))) (. .)))
Ground: A ground happens when one or more conductors touch the earth causing the electricity to flow out of the circuit and into the earth.
(ROOT (NP (NP (NP (DT A) (JJ parallel) (NN circuit)) (VP (VBZ is) (VP (RBS best) (VBN described) (PP (IN as))))) (: :) (NP (NP (NN electricity) (NNS flows)) (PP (IN along) (NP (QP (JJR more) (IN than) (CD one)) (NN pathway))))))