premise: Six teenagers were stabbed following a fight which broke out in Turramurra on Sydney's Upper North Shore on Saturday night. A 34-year-old man was found with head and upper body injuries. Police have been told the man allegedly stabbed the teens during a fight. They were all treated at the scene by paramedics before being taken to hospitals across Sydney with non life-threatening injuries. Officers from Kuring-Gai Police Area Command established a crime scene and have launched an investigation into the incident.
hypothesis: A 34 year old man was stabbed
reason: We don't know if he was stabbed, just injured. We know he stabbed 6 teenagers so none of them would have been 34 so we have no way of knowing if they were able to stab him back.