Consider the question. Premise: "A man with a striped shirt."
Hypothesis: "Blue jeans and a red kerchief in his pocket is being thrown off a brown irate horse while a brown and tan horse is buckling while the crowd is watching."
Do we know that the hypothesis entailed by the premise?
 What is the step-by-step reasoning process to arrive at the answer: it is not possible to tell?
The man being thrown off a horse is a professional horse rider.