sentence_1,sentence_2,label_ids Astrophysics of Galaxies,Other,0 Cosmology and Nongalactic Astrophysics,Other,0 Earth and Planetary Astrophysics,Other,0 High Energy Astrophysical Phenomena,Other,0 Instrumentation and Methods for Astrophysics,Other,0 Solar and Stellar Astrophysics,Other,0