Question: The airline alliance joined by Saudia in May 2012 was founded in what month?

<P0-S0> Kingfisher Airlines was established in 2003. <P0-S1>  It is owned by the Bengaluru based United Breweries Group. <P0-S2>  The airline started commercial operations on 9 May 2005 with a fleet of four new Airbus A320-200s operating a flight from Mumbai to Delhi. <P0-S3>  It started its international operations on 3 September 2008 by connecting Bengaluru with London. <P0-S4>  Kingfisher's head office is located in Kingfisher House Western Express Highway Vile Parle (E) Mumbai – 400099 India and its registered office is located in UB City, Bangalore. <P0-S5>  Its head office was previously in the Kingfisher House in Vile Parle (East), Mumbai. <P0-S6>  In 2012 Vijay Mallya was trying to sell the Vile Parle Kingfisher House. <P0-S7>  The airline had shut down its operations when on 20 October 2012 the DGCA suspended its flying license. <P0-S8>  This suspension had been due to failure to give an effective response to the show-cause notice issued by DGCA. <P0-S9>  However, The airline had locked out its employees for several days before this suspension. <P0-S10>  On 25 October 2012, the employees agreed to return to work. <P0-S11>  On 7 June 2010 Kingfisher became a member elect of the Oneworld airline alliance when it signed a formal membership agreement. <P0-S12>  Kingfisher confirmed on 20 December 2011 that it will join the Oneworld airline alliance on 10 February 2012. <P0-S13>  Kingfisher would have been the first Indian carrier to join one of the big airline alliances. <P0-S14>  However, on 3 February 2012, owing to bad financial situation and two days after the International Air Transport Association (IATA) clearing house suspended Kingfisher Airlines; the airlines participation to Oneworld has been put on hold. <SEP> <P1-S0> The AirClub is a 2012 founded airline alliance of seven airlines. <P1-S1>  It is considered to be the first and only airline alliance of business airlines, in the world. <P1-S2>  The alliance has a fleet of over 100 aircraft and is headquartered in Geneva, Switzerland. <SEP> <P2-S0> Saudia (Arabic: السعودية‎ ‎ "as-Suʿūdiyyah "), also known as Saudi Arabian Airlines (الخطوط الجوية العربية السعودية), is the national carrier airline of Saudi Arabia, based in Jeddah. <P2-S1>  The airline's main operational base is at King Abdulaziz International Airport in Jeddah. <P2-S2>  Saudia is a member of the Arab Air Carriers Organization and joined the SkyTeam airline alliance on 29 May 2012. <P2-S3>  King Khalid International Airport in Riyadh and King Fahd International Airport in Dammam are secondary hubs. <P2-S4>  The new Dammam airport was opened for commercial use on 28 November 1999. <P2-S5>  Dhahran International Airport in use until then, has reverted to being used as a military base. <P2-S6>  The airline is the third largest in the Middle East in terms of revenue, behind Emirates and Qatar Airways. <P2-S7>  It operates domestic and international scheduled flights to over 120 destinations in the Middle East, Africa, Asia, Europe and North America. <P2-S8>  Domestic and international charter flights are operated, mostly during the Ramadan and the Hajj season. <SEP> <P3-S0>  Founded in June 2000, SkyTeam was the last of the three major airline alliances to be formed, the first two being Star Alliance and Oneworld. <P3-S1>  s of 2014 , SkyTeam consists of 20 carriers from five continents and operates with the slogan "Caring more about you". <P3-S2> SkyTeam is an airline alliance. <P3-S3>  It also operates a cargo alliance named SkyTeam Cargo, which partners ten carriers, all of them SkyTeam members. <P3-S4>  Its centralised management team, "SkyTeam Central", is based at the World Trade Center Schiphol Airport on the grounds of Amsterdam Airport Schiphol in Haarlemmermeer, Netherlands.