Question: What is Matka?

Context paragraphs:
Mother Joan of the Angels: Mother Joan of the Angels (Polish: Matka Joanna od Aniołów , also known as The Devil and the Nun) is a 1961 drama film on demonic possession, directed by Jerzy Kawalerowicz, based on a novella of the same title by Jarosław Iwaszkiewicz.  The film won the Special Jury Prize at the 1961 Cannes Film Festival.

Matka, Estonia: Matka is a village in Lüganuse Parish, Ida-Viru County, Estonia.

Virgin Kębelska: The Virgin of Kębelska (Polish: "Matka Boska Kębelska" ) is a medieval sculpture of the Madonna and Child, located in the sanctuary in Wąwolnica.  The statue was brought from the village Kębło Wąwolnica, hence its name.

Mother (opera): Mother, op. 35 (Czech: "Matka" ) is a quarter-tone opera in ten scenes by the Czech composer Alois Hába.  It was completed in 1929 to the composer's own libretto; its plot is drawn from author's native Valašsko.  The opera is written in prose.

Our Lady of the Gate of Dawn: Our Lady of the Gate of Dawn (Lithuanian: "Aušros Vartų Dievo Motina" , Polish: "Matka Boska Ostrobramska" , Belarusian: Маці Божая Вастрабрамская , Russian: Остробрамская икона Божией Матери ) is the prominent Catholic painting of the Blessed Virgin Mary venerated by the faithful in the Chapel of the Gate of Dawn in Vilnius, Lithuania.  The painting was historically displayed above the Vilnius city gate; city gates of the time often contained religious artifacts intended to ward off attacks and bless passing travelers.

Matka gambling: Matka" gambling or satta" is a form of lottery which originally involved betting on the opening and closing rates of cotton transmitted from the New York Cotton Exchange.  It originates from before the era of Indian independence when it was known as "Ankada Jugar" ("figures gambling").  In the 1960s, the system was replaced with other ways of generating random numbers, including pulling slips from a large earthenware pot known as a "matka", or dealing playing cards.

Jasen (reserve): The Public Enterprise for Managing and Protection of the Multipurpose Area Jasen (Macedonian: Јавно претпријатие за управување и заштита на повеќенаменското подрачје „Јасен“ ) or just Reservе Jasen (Macedonian: Резерват „Јасен“ ) is a nature reserve in the Republic of Macedonia.  It was turned into a protected nature reserve in 2010 (part of it was declared a reserve as far back as 1958) and is situated only 15 km from Skopje.  The park compromises around 24000 ha of caves, mountains, underground rivers and lakes.  The lowest point is the still uncharted canyon lake Matka.  The highest point is Mount Karadzica with a height of almost 2500 m .

Matka Joanna: Matka Joanna is an album by Polish jazz trumpeter and composer Tomasz Stańko recorded in 1994 and released on the ECM label.  The music was inspired by Jerzy Kawalerowicz's 1961 movie "Matka Joanna od Aniołów".

Dharmatma: Dharmatama is a 1975 Hindi thriller movie and the first Bollywood film to be shot in Afghanistan.  It was produced and directed by Feroz Khan.  The movie is the first attempt in India to localise "The Godfather".  The title character was based on matka (form of Indian gambling) king Ratan Khatri.  It is said that Khan sat down with Khatri to learn more about him and understand the nuances of matka.  The cast includes Feroz Khan, Hema Malini, Rekha, Premnath, Imtiaz Khan, Danny Denzongpa, Farida Jalal, Ranjeet, Helen, Madan Puri, Jeevan, Iftekhar and Dara Singh, satyen kappu and sudhir.  The music is by Kalyanji Anandji.  This film took Feroz Khan to new heights in his career as this was a blockbuster movie.  The same year, "Sholay" and "Deewar" were released.  The film is also its scenes featuring Buzkashi a Central Asian sport on horses, including aerial shots, which in turn won film's cinematographer, Kamal Bose, Filmfare Award for Best Cinematographer.

Matka Canyon: Matka (Macedonian: Матка , meaning "womb") is a canyon located west of central Skopje, Macedonia.  Covering roughly 5,000 hectares, Matka is one of the most popular outdoor destinations in Macedonia and is home to several medieval monasteries.  The Matka Lake within the Matka Canyon is the oldest artificial lake in the country.

Supporting paragraphs: Dharmatma Matka gambling
Answer: Indian