code: def get_activations(self):
          act_events = self.tree.findall("EVENT/[type='ONT::ACTIVATE']")
          inact_events = self.tree.findall("EVENT/[type='ONT::DEACTIVATE']")
          inact_events += self.tree.findall("EVENT/[type='ONT::INHIBIT']")
          for event in (act_events + inact_events):
              event_id = event.attrib['id']
              if event_id in self._static_events:
                  continue
              agent = event.find(".//*[@role=':AGENT']")
              if agent is None:
                  continue
              agent_id = agent.attrib.get('id')
              if agent_id is None:
                  logger.debug(
                      'Skipping activation with missing activator agent')
                  continue
              activator_agent = self._get_agent_by_id(agent_id, event_id)
              if activator_agent is None:
                  continue
              affected = event.find(".//*[@role=':AFFECTED']")
              if affected is None:
                  logger.debug(
                      'Skipping activation with missing affected agent')
                  continue
              affected_id = affected.attrib.get('id')
              if affected_id is None:
                  logger.debug(
                      'Skipping activation with missing affected agent')
                  continue
              affected_agent = self._get_agent_by_id(affected_id, event_id)
              if affected_agent is None:
                  logger.debug(
                      'Skipping activation with missing affected agent')
                  continue
              is_activation = True
              if _is_type(event, 'ONT::ACTIVATE'):
                  self._add_extracted('ONT::ACTIVATE', event.attrib['id'])
              elif _is_type(event, 'ONT::INHIBIT'):
                  is_activation = False
                  self._add_extracted('ONT::INHIBIT', event.attrib['id'])
              elif _is_type(event, 'ONT::DEACTIVATE'):
                  is_activation = False
                  self._add_extracted('ONT::DEACTIVATE', event.attrib['id'])
              ev = self._get_evidence(event)
              location = self._get_event_location(event)
              for a1, a2 in _agent_list_product((activator_agent,
                                                 affected_agent)):
                  if is_activation:
                      st = Activation(a1, a2, evidence=[deepcopy(ev)])
                  else:
                      st = Inhibition(a1, a2, evidence=[deepcopy(ev)])
                  _stmt_location_to_agents(st, location)
                  self.statements.append(st)