(S (S (NP (BASENP (RB Almost) (NN half)) (PP (IN of) (BASENP (DT the) (NN country)))) (VP (VBZ depends) (PP (IN on) (NP (BASENP (DT the) (JJ electrical) (NN grid)) (SBAR (WHNP (WDT that)) (S (VP (VBD experienced) (BASENP (NNS failures))))))))) (PERIOD .))