static MultiMap<S> dm_discord_emojiJudgementsFromChat2() {
  new MultiMap<S> mm;
  new Matches m;
  for (GazelleLine line : dm_discord_allLinesWithReactions())
    if (jmatch("is * a positive or negative emoji?", tok_joinExtendedUnicodes(javaTok(line.text)), m)) {
      S emoji = $1;
      print("emoji: " + emoji);
      for (GazelleReaction r : line.reactions) {
        S judgement = dm_posNegStringForEmoji(r.emoji);
        if (empty(judgement)) continue with warn("  Unknown reaction: " + r.emoji);
          mm.put(emoji, judgement);
      }
    }
  ret mm;
}