code: def _assemble_activeform(stmt):
      
      subj_str = _assemble_agent_str(stmt.agent)
      if stmt.is_active:
          is_active_str = 'active'
      else:
          is_active_str = 'inactive'
      if stmt.activity == 'activity':
          stmt_str = subj_str + ' is ' + is_active_str
      elif stmt.activity == 'kinase':
          stmt_str = subj_str + ' is kinase-' + is_active_str
      elif stmt.activity == 'phosphatase':
          stmt_str = subj_str + ' is phosphatase-' + is_active_str
      elif stmt.activity == 'catalytic':
          stmt_str = subj_str + ' is catalytically ' + is_active_str
      elif stmt.activity == 'transcription':
          stmt_str = subj_str + ' is transcriptionally ' + is_active_str
      elif stmt.activity == 'gtpbound':
          stmt_str = subj_str + ' is GTP-bound ' + is_active_str
      return _make_sentence(stmt_str)
docs: Assemble ActiveForm statements into text.