Consider the following premises. Linda is a cashier. Karen is drinking water if and only if Elisabeth is running. If Elisabeth goes running, then Linda is not a cashier. Susan is a bartender. Can we infer the following from them? Karen is not drinking water.
 From the fact that if Elisabeth goes running, then Linda is not a cashier, and that Linda is a cashier we can infer that Elisabeth is not running. Finally, from the fact that Karen is drinking water if and only if Elisabeth is running, and that Elisabeth is not running we can infer that Karen is not drinking water. Therefore, the answer is yes.