Question:
Tha Dogg Pound is an American hip hop duo formed in 1992, made up of West Coast rappers Kurupt and Daz Dillinger (formerly Dat Nigga Daz). They were signed to Death Row Records in their early careers and were key to the label's success. The duo made their first appearance on Dr. Dre's highly acclaimed debut album The Chronic (1992), appearing on several songs. They also appeared on Snoop Dogg's debut album Doggystyle (1993), and the Death Row soundtracks Murder Was the Case and Above the Rim.
Over the years Tha Dogg Pound had beef with Bone Thugs-N-Harmony, due to Death Row Records being embroiled in a feud with Eazy-E's Ruthless Records. Tha Dogg Pound made a diss towards The Bone Thugs, on the song "Dogg Pound Gangstaz", with Kurupt's line "Ain't got no love for no hoes in harmony." In response Layzie Bone shot back on the track "Shotz to tha Double Glock" with the line "Dogg Pound hoes it's on." "Krayzie Bone says "Gotta find these 'Row Hoes" in the song "Mo' Murda" off the East 99 album. The feud ended when Snoop Dogg and Kurupt were featured on Krayzie Bone's album Thug Mentality 1999 in the song "The War Iz On." Kurupt was featured on Flesh-N-Bone's song "Kurupted Flesh" on the 5th Dog Let Loose. Krayzie Bone also featured on Daz Dillinger's 2008 solo album Only on the Left Side on the song "Meal Ticket" and later on the song "Money Fold'N" on Tha Dogg Pound's 2009 album That Was Then, This Is Now.  Tha Dogg Pound were also involved in a feud with B.G. Knocc Out & Dresta. In response to Eazy-E's Real Muthaphukkin G's and Kokane & Cold 187um's "Don't Bite The Funk", Tha Dogg Pound along with Snoop Dogg made a track called "What Would You Do" with such lines as: "Fuck B.G. Knocc Out and every nigga down with him." Later B.G. Knocc Out & Dresta retaliated with the song "D.P.G. Killa", on their debut album Real Brothas. They have since squashed the beef and released a song called "Blaze It Up", as a bonus track on Tha Dogg Pound's Dogg Chit album.  The duo engaged in yet another conflict, the beef Suge and new signee 2Pac initiated against Bad Boy Entertainment's Puff Daddy and Notorious B.I.G.; Daz and Kurupt would expand the feud to include Capone-N-Noreaga, Tragedy Khadafi and Mobb Deep with their Snoop-assisted single "New York, New York."
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What is an example of an external matter?

Answer:
Tha Dogg Pound had beef with Bone Thugs-N-Harmony,

Answer the question at the end by quoting:

Merman was born in her maternal grandmother's house located at 359 4th Avenue in Astoria, Queens in New York City in 1908, though she would later emphatically insist that it was actually 1912. Her father, Edward Zimmermann (1879-1977), was an accountant with James H. Dunham & Company, a Manhattan wholesale dry-goods company, and her mother, Agnes (Gardner) Zimmermann (1883-1974), was a teacher. Edward Zimmermann had been raised in the Dutch Reformed Church and his wife was Presbyterian.
Merman was married and divorced four times. Her first marriage, in 1940, was to theatrical agent William Smith. They were divorced in 1941. Later that same year, Merman married newspaper executive Robert Levitt. The couple had two children: Ethel (July 20, 1942 - 1965) and Robert, Jr. (born August 11, 1945) Merman and Levitt were divorced in 1952. In March 1953, Merman married Robert Six, the president of Continental Airlines. They separated in December 1959 and were divorced in 1960.  Merman's fourth and final marriage was to actor Ernest Borgnine. They were married in Beverly Hills on June 27, 1964. They separated on August 7 and Borgnine filed for divorce on October 21. Merman filed a cross-complaint shortly thereafter charging Borgnine with extreme cruelty. She was granted a divorce on November 18, 1964. Borgnine later told fellow actor Frank Wilson that he spent most of his short marriage arguing with Merman. By the end, he recounted how she came back from a film one day and said, "The director said I looked sensational. He said I had the face of a 20-year-old, and the body and legs of a 30-year-old!" Borgnine replied, "Did he say anything about your old cunt?" "No," replied Merman, "he didn't mention you at all."  In a radio interview, she said of her many marriages: "We all make mistakes. That's why they put rubbers on pencils, and that's what I did. I made a few lulus!" In her autobiography Merman (1978), the chapter entitled "My Marriage to Ernest Borgnine" consists of one blank page.  Ethel Levitt, her daughter, died on August 23, 1967, of a drug overdose that was ruled accidental. Her son Robert, Jr. was married to actress Barbara Colby who was, while estranged from Robert, shot and killed along with her boyfriend in a parking garage in Los Angeles in July 1975 by apparent gang members who had no clear motive.

How long were they married?
They were divorced in 1941.