Question: What festival is held every June in Bartlesville, Oklahoma?

Context:
Cabourg Film Festival
The Cabourg Film Festival (French: Festival du Film de Cabourg – Journées romantiques or simply Festival du Film de Cabourg ) is an annual film festival held every June in Cabourg, France.
 Founded in 1983 by writer-journalist Gonzague Saint Bris, the festival is dedicated to films in the romantic genre and films with elements of romanticism.
Sierra Nevada World Music Festival
The Sierra Nevada World Music Festival is an annual music festival held every June on the weekend of (or the weekend following) the summer solstice.
 It is currently held at the Mendocino County Fairgrounds in Boonville, California.
Brooklyn Film Festival
The Brooklyn Film Festival (BFF), prior to 2011 called the Brooklyn International Film Festival (BiFF) is an independent film festival held every June in Brooklyn, New York.
 Started by Marco Ursino, Susan Mackell, Abe Schrager, and Mario Pegoraro in 1998, its mission is to “discover, expose, and promote independent filmmakers while drawing worldwide attention to Brooklyn as a center for cinema."
 Its base is South 4th Street, Williamsburg.
OK Mozart Festival
OK Mozart is an annual Classical music festival held each June in Bartlesville, Oklahoma.
 Considered Oklahoma's Premiere Music Festival, OK MOZART brings the highest quality professional musical and cultural experiences to the state of Oklahoma and the middle United States.
 The festival is a multi-day, multi-location event with professional orchestra musicians, concert artists and musical performances of artistic excellence for an event with international significance.
New Jersey State Fair
The New Jersey State Fair is a non-profit agricultural fair held every August at the Sussex County Fairgrounds in Augusta, New Jersey.
 The fair has been held in conjunction with the Sussex County Farm and Horse Show since 1999 and draws 220,000 residents annually.
 The Augusta-based event was commonly referred to as the Sussex County Fair by locals.
 This fair is not affiliated with nor is to be confused with State Fair Meadowlands, which is a carnival held every June at the Meadowlands Sports Complex in East Rutherford, New Jersey.
Kastav Film Festival
Kastav Film Festival is an international film festival founded in 2009.
 Since then, the festival is held every June in Kastav, Croatia.
Jon Prusmack
Jon Prusmack is a former United States national rugby team player and is currently a sports entrepreneur.
 Prusmack is the founder and CEO of United World Sports (UWS), a sports marketing and event company.
 UWS owns and operates the annual USA Sevens, an international rugby sevens tournament held every February at Sam Boyd Stadium in Las Vegas.
 The USA Sevens is the largest annual rugby sevens tournament in North America.
 UWS also owns and operates the annual Collegiate Rugby Championship, a college rugby sevens tournament held every June at PPL Park in Philadelphia.
Istanbul International Music Festival
The Istanbul International Music Festival, formerly Istanbul Festival, (Turkish: Uluslararası İstanbul Müzik Festivali ) is a cultural event held every June and July in Istanbul, Turkey.
 It offers a selection of European classical music, ballet, opera and traditional music performances with the participations of famous artists from all over the world.
 The festival was first held in 1973 and is organized by the Istanbul Foundation of Culture and Arts.
 In 2006, Borusan Holding took over its main sponsorship from Eczacıbaşı Holding.
Des Moines Arts Festival
The Des Moines Arts Festival is an arts festival held every June in Western Gateway Park in Des Moines, Iowa.
 The three-day festival frequently draws in excess of 200,000 people and has been ranked among the top festivals in the United States.
Bartlesville, Oklahoma
Bartlesville is a city mostly in Washington County in the U.S. state of Oklahoma.
 The population was 35,750 at the 2010 census, with a 2015 estimate of 36,595 according to the U.S. Census Bureau.
 Bartlesville is 47 mi north of Tulsa and 18 mi south of the Kansas border.
 It is the county seat of Washington County.
 The Caney River runs through Bartlesville.

Answer: OK Mozart