Complex sentence: While in the WWWF (renamed the World Wrestling Federation, or WWF, in 1979) the Wild Samoans won the WWWF World Tag Team Championship and challenged Bob Backlund for the WWWF Heavyweight Championship on several occasions.
Split into simpler sentences: While in the WWWF, The Wild Samoans won the WWWF World Tag Team Championship. Both members also challenged Bob Backlund for the WWWF Heavyweight Championship on several occasions.