( ( White lines ) ( ( ( overlapped ( with ( the ( plasma ( pressure stand ) ) ) ) ) ( for ( ( the ( equipotential line ) ) ( of ( convection ( and ( corotation ( electric fields ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP White) (NNS lines)) (VP (VBD overlapped) (PP (IN with) (NP (DT the) (NN plasma) (NN pressure) (NN stand))) (PP (IN for) (NP (NP (DT the) (JJ equipotential) (NN line)) (PP (IN of) (NP (NN convection) (CC and) (JJ corotation) (JJ electric) (NNS fields)))))) (. .)))
White lines overlapped with the plasma pressure stand for the equipotential line of convection and corotation electric fields.
(ROOT (S (SBAR (IN Since) (S (NP (DT the) (JJ electric) (NN field) (NNS lines)) (VP (VBP point) (ADVP (RB radially)) (ADVP (RB away) (PP (IN from) (NP (DT the) (NN charge))))))) (, ,) (NP (PRP they)) (VP (VBP are) (ADJP (JJ perpendicular) (S (VP (TO to) (VP (VB equipotential) (NP (NNS lines))))))) (. .)))