A group of women has begun a tongue-in-cheek campaign for equality in Pamplona's famous San Fermin bull running festival - they want cow runs. "If the boys run ahead of the bulls, we (women) have to run with the cows. It's pure logic," said a petition run on a Spanish student Internet Web site, www.estudiln.net on Tuesday. The Web site said it had received dozens of messages of support for the initiative in recent days. In the petition, the anonymous group asked for people to pass the message, "Cows Want to Run" as an SMS to friends on their mobile phones.