Problem: Background: Richard John Grayson is a fictional character, a superhero appearing in American comic books published by DC Comics, commonly in association with Batman. Created by writer Bill Finger and artist Bob Kane, he first appeared in Detective Comics #38 in April 1940 as the original incarnation of Robin. In Tales of the Teen Titans #44 (July 1984) the character retires his role as Robin and assumes the superhero persona of Nightwing, created by Marv Wolfman and artist George Perez. The youngest in a family of Gotham City acrobats known as the "Flying Graysons", Dick watches a mafia boss kill his parents in order to extort money from the circus that employed them.
Context: 1964's The Brave and the Bold #54 introduces a junior version of the Justice League of America; an all-star superhero team of which Batman was a part. This team is led by the modern-day Robin, residing on Earth-One, and was joined by two other teenage sidekicks, Aqualad (sidekick of Aquaman) and Kid Flash (sidekick of the Flash), to stop the menace of Mr. Twister. Later, the three sidekicks join forces with Speedy and Wonder Girl in order to free their mentors in the JLA from mind-controlled thrall. They decide to become a real team: the Teen Titans. By virtue of the tactical skills gleaned from Batman, Robin is swiftly recognized as leader before the Titans disband some years later. In 1969, still in the Pre-Crisis continuity, writer Dennis O'Neil and artist Neal Adams return Batman to his darker roots. One part of this effort is writing Robin out of the series by sending Dick Grayson to Hudson University and into a separate strip in the back of Detective Comics. The by-now Teen Wonder appears only sporadically in Batman stories of the 1970s as well as a short lived revival of The Teen Titans. In 1980, Grayson once again takes up the role of leader of the Teen Titans, now featured in the monthly series The New Teen Titans, which became one of DC Comics's most beloved series of the era. During his leadership of the Titans, however, he had a falling out with Batman, leading to an estrangement that would last for many years.
Question: Who was the creator of Teen Titans?
Answer:

Problem: Background: Michael David "Mike" McCready (born April 5, 1966) is an American musician who serves as the lead guitarist for the American rock band Pearl Jam. Along with Jeff Ament, Stone Gossard and Eddie Vedder, he is one of the founding members of Pearl Jam. McCready was also a member of the side project bands Flight to Mars, Temple of the Dog, Mad Season and The Rockfords. He is also the proprietor of HockeyTalker Records.
Context: During the production of Vitalogy, McCready went into rehabilitation in Minneapolis, Minnesota, where he met bassist John Baker Saunders of The Lamont Cranston Band. In 1994, when the two returned to Seattle, they formed a side band, The Gacy Bunch, with vocalist Layne Staley of Alice in Chains and drummer Barrett Martin of Screaming Trees. After several live shows, they changed their name to Mad Season. The band released the album Above through Columbia Records in 1995, and are best known for the single "River of Deceit". The band broke up following Saunders' death in 1999 due to a heroin overdose. Staley would pass away three years later in 2002, of an apparent overdose of heroin and cocaine. On February 28, 2010, McCready performed at the Hootenanny For Haiti at the Showbox at the Market in Seattle along with the likes of Velvet Revolver, Jane's Addiction and former Guns N' Roses bassist Duff McKagan, Fastbacks bassist Kim Warnick, Loaded and former Alien Crime Syndicate, Sirens Sister and Vendetta Red bassist Jeff Rouse as well as Truly and former Screaming Trees drummer Mark Pickerel among others. A number of songs were covered during the show, including Belinda Carlisle's "Heaven Is a Place on Earth", Hank Williams' "I'm So Lonesome I Could Cry", The Rolling Stones' "Dead Flowers" among others however one of the more notable covers came when McCready performed a cover of "River of Deceit" for the first time since the breakup of Mad Season with Jeff Rouse performing vocal duties on the song. Above was re-released in a 3 disc Deluxe edition in 2013. Also in vinyl format featuring 3 new songs with Mark Lanegan on vocals. In 2015, Live at the Moore 1995 was released on 12" vinyl to coincide with the 20th anniversary of the band's final show. Earlier in 2015, the surviving members, McCready and Martin joined with the Seattle Symphony in a concert at Benaroya Hall entitled "Sonic Evolution" featuring special guests and friends. The show was later released on CD/12" vinyl.
Question: Is there anything else interesting?
Answer: A number of songs were covered during the show, including Belinda Carlisle's "Heaven Is a Place on Earth", Hank Williams' "I'm So Lonesome I Could Cry", The Rolling Stones' "

Problem: Background: Yen was born in Guangzhou, China. His mother, Bow-sim Mark, is a Fu Style Wudangquan (internal martial arts) and Tai Chi grandmaster, while his father, Klyster Yen (Zhen Yun Long ), is a newspaper editor. When he was two years old, his family moved to Hong Kong and then to Boston when he was 11. His younger sister, Chris Yen, is also a martial artist and actress, and appeared in the 2007 film Adventures of Johnny Tao: Rock Around the Dragon.
Context: Donnie Yen was a rebel when he was young due to the huge expectations and pressures from his parents, as his mother is the founder of the Chinese Wushu Research Institute in Boston, and his father was a scholar and a musician. Yen joined a Chinatown gang in Boston, MA, in his early years. He was a very curious teenager who sought to exchange martial arts knowledge with people from different martial arts backgrounds, which led to him gaining profound knowledge in practical martial arts and having a reputation as a street brawler. One reported occasion confirms Yen as being an efficient martial artist. According to news reports by Hong Kong news channels in the late 1990s, Yen was at a nightclub with his then girlfriend, Joey Meng. Inside the nightclub, Joey was harassed by a troublesome gang that had taken an interest in her. Yen warned them to leave her alone, but they persisted to cause trouble. As Yen and Joey left the club, the gang followed and attacked Yen. Yen beat up eight members of the gang who were later hospitalized. Malaysian Martial Arts Star Michelle Yeoh has said that Donnie Yen is the fastest guy she has worked with. Other martial arts stars such as Jackie Chan and Jet Li have also stated that Yen may be the best fighter in terms of practical combat in the Asian cinematic universe. World class fighters, such as former Strikeforce Middleweight Champion Cung Le and former World Boxing Heavyweight Champion Mike Tyson, who have worked with Donnie Yen in the films Bodyguards and Assassins and Ip Man 3, respectively, have both claimed that Donnie Yen is an incredible martial artist and would do well in authentic combat. While filming Ip Man 3, crew members were afraid that Mike Tyson, who had been a professional boxer, would forget the choreography and throw real punches to injure Yen. However, it was ultimately Yen who fractured Tyson's finger while using his elbow to block Tyson's punches.
Question: Were there any other fights he was in?
Answer:
Jackie Chan and Jet Li have also stated that Yen may be the best fighter in terms of practical combat in the Asian cinematic universe.