( This ( ( is ( ( EXACTLY ( the response ) ) ( by ( ( world economies ) ( to ( ( the ( oil ( price runup ) ) ) ( that ( caused ( us ( ( ( to ( find ( other ( energy sources ) ) ) ) and ) ( to ( use ( more conservation ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (VP (VBG EXACTLY) (NP (DT the) (NN response)) (PP (IN by) (NP (NP (NN world) (NNS economies)) (PP (TO to) (NP (NP (DT the) (NN oil) (NN price) (NN runup)) (SBAR (WHNP (WDT that)) (S (VP (VBD caused) (S (NP (PRP us)) (VP (VP (TO to) (VP (VB find) (NP (JJ other) (NN energy) (NNS sources)))) (CC and) (VP (TO to) (VP (VB use) (NP (JJR more) (NN conservation))))))))))))))) (. .)))
This is EXACTLY the response by world economies to the oil price runup that caused us to find other energy sources and to use more conservation.
(ROOT (S (NP (NNP Oil)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (RB commonly) (VBN used)) (NN source)) (PP (IN of) (NP (NP (NN energy)) (PP (IN in) (NP (DT the) (NN world))))))) (. .)))