Definition: 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.
Input: Question: How many countries make up the continent where the 2016 world tour began? Passage:The world tour to support the album began in June 2016 in Europe with a festival tour. The band's headlining tour to support the album will begin in September 2016 in Europe and continue into 2017 throughout the United States and Canada. "Dark Necessities", "Go Robot", "Sick Love" and "This Ticonderoga" made their live debuts in May 2016. "The Getaway" had actually been teased during their performances of "Give It Away" at Ace Hotel for the Feel The Bern Benefit Concert in Los Angeles, CA in February 5, 2016, and at Super Bowl 50 party in San Francisco, CA back in February 2016, however, it went unknown until the band released the song on May 26, 2016. The song would first be performed in its entirety on May 29, 2016. "We Turn Red" became the sixth song from the album to be performed live making its debut on June 10, 2016. "The Longest Wave" made its live debut on June 14, 2016 at a promotional show in Paris. "Detroit" made its live debut on June 29, 2016 at the Roskilde Festival. On July 1, 2016, the Live In Paris EP was released exclusively through the music streaming website Deezer. It features five songs from the band's performance of June 14, 2016 in Paris. "Goodbye Angels" made its live debut on July 10, 2016. "Dreams of a Samurai" made its live debut on July 24, 2016 at the Fuji Rock Festival in Japan. "Feasting on the Flowers" premiered in Oslo, Norway on September 8, 2016."Encore" was finally performed on April 24, 2017 in Jacksonville, FL making "The Hunter" the only song to not be performed yet from the album. The tour concluded on October 18, 2017 lasting a year and almost five months and consisted of 151 shows. The tour placed 32nd on Pollstar's year-end top 100 worldwide tours list for 2016, grossing a total of $46.2 million, and it finished as the 18th highest grossing worldwide tour in 2017 grossing $73.5 million.


b