They seem to really like The Undertaker!
From the list:
"Wrestling Observer Newsletter Hall of Fame The Undertaker
Wrestlewar 1990 The Undertaker
WrestleMania XXVIII The Undertaker
WrestleMania XXVII The Undertaker
WrestleMania XXVI The Undertaker
WrestleMania XXV The Undertaker
WrestleMania XXIV The Undertaker
WrestleMania XX The Undertaker
WrestleMania XV The Undertaker
WrestleMania X-Seven The Undertaker
WrestleMania XIX The Undertaker
WrestleMania XIV The Undertaker
WrestleMania XII The Undertaker
WrestleMania XI The Undertaker
WrestleMania X8 The Undertaker
WrestleMania VIII The Undertaker
WrestleMania VII The Undertaker
WrestleMania IX The Undertaker
WrestleMania 23 The Undertaker
WrestleMania 22 The Undertaker
WrestleMania 21 The Undertaker
WrestleMania 13 The Undertaker
WrestleMania The Undertaker
Professional wrestling throws The Undertaker
Professional wrestling match types The Undertaker
Professional wrestling holds The Undertaker
Professional wrestling booker The Undertaker
Professional wrestling attacks The Undertaker
Professional wrestling aerial techniques The Undertaker
Professional wrestling The Undertaker"