The line to the White House shelter conference room-and the Vice President- kept cutting off.
( ( ( The line ) ( to ( the ( White ( House ( shelter conference ) ) ) ) ) ) ( ( room-and ( ( ( the ( Vice President ) ) - ) ( kept ( cutting off ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN line)) (PP (TO to) (NP (DT the) (NNP White) (NNP House) (NN shelter) (NN conference)))) (VP (VBD room-and) (NP (NP (DT the) (NNP Vice) (NNP President)) (: -) (VP (VBN kept) (S (VP (VBG cutting) (PRT (RP off))))))) (. .)))
The line to the White House shelter conference room kept dropping calls.
( ( ( The line ) ( to ( the ( White ( House ( shelter ( conference room ) ) ) ) ) ) ) ( ( kept ( dropping calls ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN line)) (PP (TO to) (NP (DT the) (NNP White) (NNP House) (NN shelter) (NN conference) (NN room)))) (VP (VBD kept) (S (VP (VBG dropping) (NP (NNS calls))))) (. .)))