Bob Dylan doled out his words sparingly while talking to an IBM computer in a TV commercial that debuted during this week's "Monday Night Football."

Dylan speaks 21 words spread over five sentences during his back and forth with a far more chatty ­"Watson" in a story line that has the Minnesotan suggesting to IBM's artificial-intelligence computer that they work on a song together.

"My analysis shows that your major themes are that time passes and love fades," says laptop-based Watson in a computer-like intonation, to which Dylan responds, "That sounds about right."

Watson embraces Dylan's offer of coauthorship, boasts of an ability to carry a tune and uncorks a little "do-be-bop bebop-a-do, do-be do-be-do."

To that, Dylan gets up from the couch, guitar in hand, and exits stage left, from whence he came when the commercial began.

The 30-second spot, created by the global ad agency Ogilvy & Mather, is part of IBM's "Era of Cognitive Business" campaign and includes two other commercials: one with "Jeopardy" quiz show king Ken Jennings and with a bright soon-to-be 7-year-old name Annabelle.

Dylan, whose counterculture lyrics captured 1960s tumult in America, has occasionally appeared in commercials. IBM now joins Chrysler, Victoria's Secret, Apple, Cadillac and Pepsi on his endorsement roster.

To see the ad, go to startribune.com/video

Paul Walsh

Patrick Kennedy defends memoir

A memoir by former congressman Patrick Kennedy has created a rift with family members upset over his portrayal of family secrecy, substance abuse and mental illness, including of his father, late Massachusetts Sen. Edward Kennedy. Kennedy on Tuesday defended his book, "A Common Struggle: A Personal Journey Through the Past And Future of Mental Illness and Addiction." He said he loves his family but that he feels it is important for him to talk openly about the mental illness and addiction that he and relatives have suffered. "My family does not want to be identified with a medical illness. That should tell you something about the shame and stigma that still surrounds these issues," he said on MSNBC Tuesday. His brother, Ted, said Sunday he was heartbroken that Patrick had written what he called "an inaccurate and unfair portrayal" of their family and said the narrative was "misleading and hurtful."

lawsuit: A model who has accused Bill Cosby of drugging her at the Playboy Mansion in 2008 sued the comedian on Tuesday for sexual assault.

Chloe Goins' suit was filed in federal court in L.A.

Associated Press