(S (S (S (NP (BASENP (QP (RB Approximately) (NN 25)) (NN percent)) (PP (IN of) (NP (BASENP (NNPS Indians)) (PP (IN over) (NP (BASENP (DT the) (NN age)) (PP (IN of) (BASENP (NN seven)))))))) (VP (VBD were) (VP (VP (VBN found) (S (VP (TO to) (VP (VB be) (ADJP (JJ illiterate)))))) (PP (IN in) (BASENP (DT the) (NN 2011) (NN census)))))) (COMMA ,) (NP (NP (BASENP (DT a) (NN decrease)) (PP (IN of) (BASENP (NN 10) (NN percent)))) (PP (IN from) (NP (BASENP (DT the) (NN census)) (VP (VBN held) (ADVP (BASENP (NN ten) (NNS years)) (RB ago))))))) (PERIOD .))