At that point, the second call was cut off.
( ( At ( that point ) ) ( , ( ( the ( second call ) ) ( ( was ( cut off ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (DT that) (NN point))) (, ,) (NP (DT the) (JJ second) (NN call)) (VP (VBD was) (VP (VBN cut) (PRT (RP off)))) (. .)))
The second call continued for hours.
( ( The ( second call ) ) ( ( continued ( for hours ) ) . ) )
(ROOT (S (NP (DT The) (JJ second) (NN call)) (VP (VBD continued) (PP (IN for) (NP (NNS hours)))) (. .)))