Which A1 (boy band) member is not present in the 2009 reunion but rejoined in 2017?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q84', 'id': 0, 'label': 'London'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q279634', 'id': 1, 'label': 'a1'}], 'links': [{'name_': 'P740', 'source': 1, 'target': 0, 'label': 'location of formation'}]}
London was formed in a1.
London is the location of the A1 .
Which A1 (boy band) member is not present in the 2009 reunion but rejoined in 2017?</s> [unused1]London                [unused2] was formed in a1.
Which A1 (boy band) member is not present in the 2009 reunion but rejoined in 2017?</s>London was formed in a1.
Which A1 (boy band) member is not present in the 2009 reunion but rejoined in 2017?</s> [unused1]London                [unused2] is the location of the A1 .
Which A1 (boy band) member is not present in the 2009 reunion but rejoined in 2017?</s>London is the location of the A1 .
Which A1 (boy band) member is not present in the 2009 reunion but rejoined in 2017?</s>[unused1]London[unused2],0,[unused1]London[unused2],[unused1]London[unused2],0,a1,a1,location of formation,[unused1]London[unused2],a1,0,a1
Which A1 (boy band) member is not present in the 2009 reunion but rejoined in 2017?</s>London,0,London,London,0,a1,a1,location of formation,London,a1,0,a1