negative, positive
      (1.24.22)
      negative, positive
      here, there
      passive, active
      question, statement
      hungry, full
      leave, stay
      addition, deletion
      ugly, pretty
      hurry, patient
      apathy, empathy
      stop, go
      kind, rude
      young, old
      hot, cold
      shy, bold
      fire, water
      up, down
      loose, tight
      left, right
      joy, sad
      trapped, free
      you, me