instruction:
In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.
question:
Question: What year did construction begin on the dam that the river passes through before Afterbay Dam? Passage:The Bighorn River begins as the Wind River in the Rocky Mountains at Wind River Lake, near Two Ocean Mountain and the summit of Togwotee Pass. The Wind River flows southeast receiving the east fork of the Wind River from the north, and enters the Wind River Basin, flowing past Dubois and Johnstown, to Riverton, where it receives the Little Wind River. The river then changes direction to the northeast and then the north, flowing into Boysen Reservoir, which is formed by Boysen Dam. Below the dam it enters the Wind River Canyon, where the river narrows and forms many rapids. At the end of the canyon the Wind River widens out in an area called the Wedding of the Waters where it becomes the Bighorn River and enters the Bighorn Basin. The Bighorn continues northward, passing through Thermopolis, Worland, and Basin. At Greybull it receives the Greybull River, and about north of that confluence it enters Bighorn Lake, where it is joined by the Shoshone River. North of the confluence with the Shoshone, the reservoir narrows as the river enters the Bighorn Canyon, where it crosses into Montana. At the end of the canyon, the river passes through Yellowtail Dam and Afterbay Dam. The river turns to the northeast and enters the Great Plains. At Hardin the river is joined by the Little Bighorn River. Approximately downriver from the Little Bighorn, in Big Horn County, the Bighorn empties into the Yellowstone.

answer:
b


question:
Question: Was Guzman's co-anchor married when she joined Today in L.A.? Passage:Early in her career, she worked with the Univision network in Miami, Florida. She moved to Telemundo-owned station KTMD in Houston, Texas, from 2004 until she joined NBC-affiliated station KPRC-TV as a general assignment reporter and weekend anchor in 2006. Known for her dynamic reporting, she has covered many prominent news stories, including Hurricanes Ike, Dolly and Gustav. She was one of the first reporters on the scene to cover the 2009 Fort Hood shooting. In 2012, she was named co-anchor of WMAQ-TV's weekday morning newscasts along with Stefan Holt, replacing Rob Elgas and Zoraida Sambolin, who returned to the station in 2014. In June 2014, Guzman joined KNBC in Los Angeles as a co-anchor of Today in L.A. alongside Whit Johnson after Alycia Lane left the station in 2013. In May 2016, L.A. Parent Magazine hired Daniella as a contributor to the magazine, the magazine debuts its column "On The Record: Straight Talk For Moms" in which, she is now also a magazine contributor in addition to its anchor duties at KNBC.

answer:
b


question:
Question: What year was the School of American Ballet founded? Passage:Waring's training began in 1939 in San Francisco and Oakland at the age of 17. He was exposed to numerous kinds of dancing, including ballet at the San Francisco Ballet School with Harold Christensen and his brother, the Graham technique with Gertrude Schurr, and the interpretive dance of Raoul Pausé. Later, after serving in the Army in World War II, he studied in New York City at the School of American Ballet, and with Anna Halprin, Louis Horst, Antony Tudor, and Anatole Vilzak, and also took some classes with Merce Cunningham. Waring was very attracted to ballet and intrigued by its complex history and sensibility, and dance historian David Vaughan suggests that Waring's extensive knowledge of dance history played an important role in his work; Waring's dances became more balletic over time.

answer:

b