tokens: The authors thank the referee for valuable suggestions and comments to improve the quality of this article. We gratefully acknowledge Y. N. Su, P. F. Chen, J. Zhang, B. Kliem, R. Liu, S. Gibson, H. Gilbert, M. D. Ding, and H. N. Wang for inspiring and constructive discussions. SDO is a mission of NASA's Living With a Star Program. AIA and HMI data are courtesy of the NASA/ SDO science teams. STEREO /SECCHI data are provided by a consortium of US, UK, Germany, Belgium, and France. QMZ is supported by Youth Fund of JiangSu BK20141043, by 973 program under grant 2011CB811402, and by NSFC 11303101, 11333009, 11173062, 11473071, and 11221063. H. Ji is supported by the Strategic Priority Research Program—The Emergence of Cosmological Structures of the Chinese Academy of Sciences, grant No. XDB09000000. Y.G. is supported by NSFC 11203014. Li Feng is supported by the NFSC grant 11473070, 11233008, and by grant BK2012889. Li Feng also thanks the Youth Innovation Promotion Association, CAS, for the financial support.
ner_tags: O O O O O O O O O O O O O O O O O O O O B-Person I-Person I-Person B-Person I-Person I-Person B-Person I-Person B-Person I-Person B-Person I-Person B-Person I-Person B-Person I-Person B-Person I-Person I-Person O B-Person I-Person I-Person O O O O O B-Observatory O O O O B-Organization B-Grant I-Grant I-Grant I-Grant I-Grant B-Telescope O B-Telescope O O O O O B-Organization I-Organization I-Organization I-Organization B-Observatory B-Telescope O O O O O O O B-Location B-Location B-Location B-Location O B-Location B-Person O O O B-Grant I-Grant I-Grant I-Grant I-Grant O B-Grant I-Grant O B-Grant I-Grant O O B-Organization B-Grant B-Grant B-Grant B-Grant O B-Grant B-Person I-Person O O O O B-Grant I-Grant I-Grant I-Grant I-Grant I-Grant I-Grant I-Grant O O B-Organization I-Organization I-Organization I-Organization B-Grant I-Grant I-Grant B-Person O O O B-Organization B-Grant B-Person I-Person O O O O B-Organization B-Grant I-Grant B-Grant O O B-Grant I-Grant B-Person I-Person O O O B-Organization I-Organization I-Organization I-Organization B-Organization O O O O