 Complete the following phrase:  Razgulajevs teamed up with Mackenzie Bent in spring 2015. Making their international debut, they won the silver medal at the 201516 ISU Junior Grand Prix event in Colorado Springs, Colorado. They finished fifth at their second JGP assignment, in Logroño, Spain. The two missed the Skate Canada Challenge in December because Razgulajevs experienced vertigo but the following month they won the junior gold medal at the 