[['country', 'builder', 'location', 'ship', 'class / type'], ['united kingdom', 'samuda brothers', 'poplar , london', 'orion', 'belleisle - class ironclad'], ['united kingdom', 'john elder and co', 'govan , scotland', 'arizona', 'passenger ship'], ['germany', 'schichauwerft', 'danzig', 'gneisenau', 'three masted full rigged ship'], ['united kingdom', 'chatham dockyard', 'chatham , kent', 'agamemnon', 'ajax - class ironclad'], ['united kingdom', 'sheerness dockyard', 'sheerness', 'kingfisher', 'sloop']]
the same Location was not used to Launch a Ship more than 1 time
the same [ENT] was not used to [ENT] a [ENT] more than 1 time