 Complete the following phrase:  On May 21, 1985, in honor of the Owen familys 60 years of promoting in the PNW, a supercard called 60th Anniversary Wrestling Extravaganza was held at the Portland Memorial Coliseum. The show featured representatives from the NWA, AWA and WWF, including the World Champions of both the NWA and AWA and the World Tag Team Champions of the AWA all defending their titles. The PNW accomplished in this card something the WWFWWE had yet to achieve, a sold out Coliseum. Barry Owen claimed that this event had the highest attendance ever for a sporting event at the Coliseum. The show saw the final match in the Buddy Rose-Rowdy Roddy Piper angle as its main event, just weeks after both men appeared in 