Student A:The song is about music agent / promoter David Geffen, a close friend of Mitchell in the early 1970s, and describes Geffen during a trip the two made to Paris with Robbie and Dominique Robertson. While Geffen is never mentioned by name, Mitchell describes how he works hard creating hits and launching careers but can find some peace while vacationing in Paris. Mitchell sings "I was a free man in Paris. I felt unfettered and alive. Nobody calling me up for favors. No one's future to decide."

Answer this question based on the passage: who was a free man in paris written about?
Student B:OK... The important part for answering this question is: The song is about music agent / promoter David Geffen, a close friend of Mitchell in the early 1970s, and describes Geffen during a trip the two made to Paris with Robbie and Dominique Robertson.
music agent / promoter David Geffen.

Student A:Apple unveiled fourth generation 13-and 15-inch MacBook Pro models during a press event at their headquarters on October 27, 2016. The models introduced the Touch Bar, a multi-touch enabled OLED strip built into the top of the keyboard in place of the function keys. They include a sapphire-glass covered Touch ID sensor at the right end of the Touch Bar which doubles as a power button. The models also introduce a "second-generation" butterfly mechanism keyboard that provided more travel than the first iteration implemented on the Retina MacBook. The 13-inch model has a trackpad that is 46 % larger than its predecessor while the 15-inch model has a trackpad twice as large as the prior generation.

Answer this question based on the passage: when was the most recent macbook pro released?
Student B:OK... This is the relevant information: Apple unveiled fourth generation 13-and 15-inch MacBook Pro models during a press event at their headquarters on October 27, 2016.
October 27 , 2016.

Student A:Passage: The first season of Spring Baking Championship premiered on April 25, 2015. The second season of the series premiered on April 10, 2016, and concluded on May 15, 2016. The third season premiered on March 12, 2017, with Jesse Palmer replacing Deen as host. The fourth season premiered on March 12, 2018, with Ali Khan replacing Palmer as host.

Question: Based on this passage, who is the host of season 4 spring baking championship?
Student B:OK... This is the relevant information: The fourth season premiered on March 12, 2018, with Ali Khan replacing Palmer as host.
Ali Khan.

Student A:While mentioned in passing throughout later seasons, Burke officially returns in the tenth season in order to conclude Cristina Yang's departure from the series.

Answer this question based on the passage: what season does burke come back in grey's anatomy?
Student B:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
OK... The relevant information is: While mentioned in passing throughout later seasons, Burke officially returns in the tenth season in order to conclude Cristina Yang's departure from the series.
the tenth season.