( ( The aircraft ) ( ( is ( ( equipped ( with ( ( ( ( AC ( -LRB- ( ( Alternating Current ) -RRB- ) ) ) and ) DC ) ( -LRB- ( ( Direct Current ) -RRB- ) ) ) ) ) ( electrical systems ) ) ) . ) )
(ROOT (S (NP (DT The) (NN aircraft)) (VP (VBZ is) (NP (ADJP (VBN equipped) (PP (IN with) (NP (NP (NNP AC)) (PRN (-LRB- -LRB-) (NP (NNP Alternating) (NNP Current)) (-RRB- -RRB-)) (CC and) (NP (NNP DC)) (PRN (-LRB- -LRB-) (NP (NNP Direct) (NNP Current)) (-RRB- -RRB-))))) (JJ electrical) (NNS systems))) (. .)))
The aircraft is equipped with AC (Alternating Current) and DC (Direct Current) electrical systems.
(ROOT (S (NP (VBG Alternating) (NN current)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (JJ electric) (NN current))) (SBAR (WHNP (WDT that)) (S (VP (VBZ keeps) (S (VP (VBG reversing) (NP (NN direction))))))))) (. .)))