We observe that our Phase 1 set-up tends to encourage placing antonymous words in the same broad groups, based on their relatedness (e.g., antonymous pairs stay and leave, and lose and gain end up clustered together).
in Phase 2 antonyms are predominantly kept apart: out of 67 antonymy pairs shared with SimVerb (i.e., pairs labeled ANTONYMS in SimVerb), only 2 are placed closer in the arena (inhale - exhale and sink - swim).