(S (S (BASENP (JJ Thai) (NN military) (NNS forces)) (VP (VP (VP (VBD moved) (PRT (RP in))) (ADVP (RB quickly))) (S (VP (TO to) (VP (VP (VP (VB suppress) (BASENP (DT the) (NNS protesters))) (PP (ADVP (RB just)) (PP (IN after) (BASENP (DT the) (NN shooting))))) (COMMA ,) (S (VP (VBG aiming) (S (VP (TO to) (VP (VP (VP (VB put) (PRT (RP down))) (BASENP (DT the) (NN opposition) (NN movement))) (CC and) (VP (VB secure) (NP (BASENP (DT the) (NN area)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (BASENP (PRP they)) (VP (VBD had) (VP (VP (VBN barricaded) (BASENP (PRP themselves))) (PP (IN since) (BASENP (JJ early) (NNP April))))))))))))))))))) (PERIOD .))