Question: Ross Murdoch was teammates with the competitive swimmer who specializes in which event?
Sentence (from "Ross Murdoch"): In 2015, he formed part of the Great Britain squad that won gold in the mixed 4 x 100 metre medley relay at the 2015 World Aquatics Championships, swimming in the qualifying heats, and adding a relay world title to the individual bronze won days earlier in the men's 100 metre breaststroke behind teammate Adam Peaty.
Relevant evidence: Yes