(S (S (PP (IN During) (BASENP (DT the) (NNP Arab) (NNP Spring))) (COMMA ,) (S (NP (BASENP (NNS protesters)) (PP (IN in) (BASENP (JJ various) (NNS countries)))) (VP (VP (VBD used) (BASENP (NNP Twitter))) (S (VP (TO to) (VP (VP (VB mobilize) (BASENP (NN support) (CC and) (NN report) (NN information))) (PP (TO to) (BASENP (DT the) (JJ outside) (NN world))))))))) (PERIOD .))