With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jet Li made his debut in China.
text_B: In baseball , the vulcan changeup pitch -LRB- otherwise known as a vulcan or trekkie -RRB- is a type of changeup ; it closely resembles a forkball and split-finger fastball .. baseball. baseball. changeup. changeup. forkball. forkball. split-finger fastball. split-finger fastball. It is a variation of the circle changeup , and when mastered can be extremely effective .. changeup. changeup. circle changeup. circle changeup. Much like a forkball , the vulcan is gripped between two fingers on the hand , but rather than the middle and index finger as with the forkball or split-finger fastball , it sits in between the middle and ring fingers to make a v-shape -LRB- Vulcan salute -RRB- when releasing to the catcher .. forkball. forkball. split-finger fastball. split-finger fastball. Vulcan salute. Vulcan salute. Vulcan. Vulcan ( Star Trek ). It is thrown with fastball arm speed but by pronating the hand by turning the thumb down , to get good downward movement on it .. pronating. Pronation. The pitch is uncommon in Major League Baseball .. Major League Baseball. Major League Baseball. Ian Kennedy throws this style of changeup instead of others because he `` found it more comfortable and had more movement '' .. changeup. changeup. Ian Kennedy. Ian Kennedy. Among the others who have thrown it are former relievers Randy Tomlin and Joe Nelson , and most notably former all-star closer Eric Gagne , for whom the vulcan changeup was considered one of his best pitches .. changeup. changeup. Randy Tomlin. Randy Tomlin. Joe Nelson. Joe Nelson. Eric Gagne. Eric Gagne. Roy Oswalt adopted this pitch during the 2010 offseason and prefers it over the circle changeup .. changeup. changeup. circle changeup. circle changeup. Roy Oswalt. Roy Oswalt. John Gant also uses the vulcan changeup .. changeup. changeup. John Gant. John Gant. Nelson explained his choice for naming the pitch  : `` It was either going to be Nanu Nanu or the Vulcan .. Vulcan. Vulcan ( Star Trek ). Spock just seemed like a cooler character than Mork . ''. Spock. Spock. Mork. Mork & Mindy. The pitch has been nicknamed the `` trekkie '' , because of the Vulcan symbol , from the show Star Trek , that appears in the grip of the ball .. Vulcan. Vulcan ( Star Trek ). Star Trek. Star Trek
not_related.