ner_tags: O O B-Person I-Person O O O O O O O B-Person I-Person O O O O O O B-Person I-Person O O O O O O O O O O O O O O O O O O B-Person O O O O B-Organization B-Grant O O O O O O O B-Grant I-Grant O B-Organization B-Organization
tokens: We thank Andrew Hearin for help in using his mock catalogue, Yu Lu for using his semi-analytical data, and Zhankui Lu for helpful discussion and the anonymous referee for helpful comments that greatly improved the presentation of this paper. HJM acknowledges the support from NSF AST-1109354. This work is also supported by the 973 Programme (nos 2015CB857002, 2015CB857005).