Readers are of course invited to submit their candidates to the Rock Pomposity Sweepstakes at culturebox@slate.com.
Readers can submit the names of their candidates only upon invitation by authorized personnel. 
mnli hypothesis: Readers can submit the names of their candidates only upon invitation by authorized personnel.  premise: Readers are of course invited to submit their candidates to the Rock Pomposity Sweepstakes at culturebox@slate.com.