Instructions: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Was it a case of ruff treatment? The owner of a San Diego, California, therapy dog has claimed the pooch's certification was revoked because of the animal's biker-themed costume. Mark Shaffer owns Chopper the Biker Dog. Photos on Facebook show Chopper often sports a leather vest, goggles, different styles of bandannas, and a motorcycle helmet. On Tuesday, Shaffer wrote in a Facebook post 'On May 14th, 1 day after Chopper and I returned from a 10 day "Tour" up the west coast, sharing MY love with as many people and with whoever we could, at different nursing facilities, Veterans, Law Enforcement, "Chopper's fans... and whoever was in need of something "special", ON OUR OWN TIME, I received an email from Pet Partners (formally "The Delta Society")", the organization that I (dad) have been a part of with 2 therapy dogs for the past 10 years.'Mark Shaffer owns Chopper the Biker Dog, who works as a therapy dogShaffer has claimed the pooch's certification from Pet Partners was revoked because of the animal's biker-themed costumeChopper often sports a leather vest, goggles, different styles of bandannas, and a motorcycle helmetShaffer has said 'This is not a costume. This is his persona'A Pet Partners spokesman has said 'It's not a problem for dogs to wear costumes around town, but in the context of a therapeutic visit it's not appropriate'Shaffer is planning for the dog to be certified by a different organization 
 Question:'We wish _ and Chopper all the best and hope that they will continue to bring smiles to the people they meet.
Output:
Mark Shaffer