What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? James is drinking water if and only if it is cloudy. If James drinks water, then Elisabeth is not a nurse. If James drinks water, then it is cloudy. Elisabeth is a nurse.
James is not drinking water. If James drinks water, then it is cloudy. If it is cloudy, then James is drinking water.