ner_tags: O O B-Person I-Person I-Person O B-Person I-Person I-Person O O O O O O O O O O B-Person O B-Person I-Person O O O B-Organization O B-Organization
tokens: We thank Drs D. Koester and R. D. Rohrmann for the enlightening discussions and useful suggestions throughout this work. IP and SO Kepler are supported by CNPq and FAPERGS-Pronex-Brazil.