The operation was not cost  the United States lost two planes.
( ( The operation ) ( ( ( was not ) ( cost ( ( the ( United States ) ) ( lost ( two planes ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN operation)) (VP (VBD was) (RB not) (VP (VBN cost) (SBAR (S (NP (DT the) (NNP United) (NNPS States)) (VP (VBD lost) (NP (CD two) (NNS planes))))))) (. .)))
No equipment was lost in the operation.
( ( No equipment ) ( ( was ( lost ( in ( the operation ) ) ) ) . ) )
(ROOT (S (NP (DT No) (NN equipment)) (VP (VBD was) (VP (VBN lost) (PP (IN in) (NP (DT the) (NN operation))))) (. .)))