Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Which successful operation the four friends started? Title: The Bridge to Nowhere Movie plot: Kevin, Brian, Chris, Darick and Eddie are childhood friends from a working-class neighborhood in Pittsburgh. They are in their mid-20s and working low paid blue collar jobs and occasional small criminal offenses like selling marijuana or illegally providing liquor for parties. Brian convinces all but Eddie to start making money by pandering. They start with two girls, Jasper and Sienna, and the business eventually expands to five girls. They find a drug dealer, Nate, to supply cocaine, first for the girls, and then for their 'johns' as well. As the business succeeds, Nate's price gets more expensive. As their fortunes grow and the affluent lifestyle affects Brian, he eventually gets addicted to the drug, even though Nate had warned them all not to "partake in the product". One night Chris takes Sienna to meet with an old client who likes Sienna. Both smoke crack, and the 'john' kills her. The police arrive and arrest him and Chris, who is outside the room, unaware of the murder. He is charged with several crimes that include prostitution, drug-dealing, possession etc., and could face many years in state prison. Brian visits Chris in jail, who tells Brian the cops will likely reduce his sentence to two years minimum, if he tells them where he got the drugs from. Brian tries to convince Chris that if he does this, Nate will hunt him down, but Chris doesn't care. Brian returns to the other two to talk with them, but the others tell him that they are not going to be involved in the business anymore with Chris in jail and Sienna dead, so they quit, after Kevin also discloses to Brian that he loves Jasper. Brian then tells Nate about what happened, and Nate contracts to kill Chris in jail, but the old convict he hires, who sticks a shiv into Chris several times, does not kill him. Chris tells the police of Brian's drug & pimping business. Darick is killed by Nate and Brian tries to kill Kevin unsuccessfully. Kevin takes a plane out of the country, with Jasper catching up with him later, her having been shot by...
A:
Can't answer