( ( ( The ( unbroken ( ( path or ) loop ) ) ) ( ( through which ) ( electricity flows ) ) ) ( ( is ( called ( a ( ( ( complete or ) closed ) circuit ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ unbroken) (NN path) (CC or) (NN loop)) (SBAR (WHPP (IN through) (WHNP (WDT which))) (S (NP (NN electricity)) (VP (VBZ flows))))) (VP (VBZ is) (VP (VBN called) (NP (DT a) (ADJP (JJ complete) (CC or) (JJ closed)) (NN circuit)))) (. .)))
The unbroken path or loop through which electricity flows is called a complete or closed circuit .
(ROOT (S (SBAR (IN Because) (S (NP (NNS charges)) (VP (MD must) (VP (VB have) (NP (DT an) (JJ unbroken) (NN path) (S (VP (TO to) (VP (VB follow))))))))) (, ,) (NP (JJ electric) (NN current)) (VP (MD can) (RB not) (VP (VB flow) (PP (IN through) (NP (DT a) (NN material))) (SBAR (IN unless) (S (NP (PRP it)) (VP (VBZ forms) (NP (DT a) (VBN closed) (NN loop))))))) (. .)))