Consider the following premises. David is not drinking water. Karen is playing a game if and only if Sarah is playing tennis. Karen is not playing a game. If it is overcast, then David is drinking water. Can we infer the following from them? Sarah is playing tennis.
 From the fact that if it is overcast, then David is drinking water, and that David is not drinking water we can infer that it is not overcast. Finally, from the fact that Karen is playing a game if and only if Sarah is playing tennis, and that Karen is not playing a game we can infer that Sarah is not playing tennis, which contradicts that Sarah is playing tennis. Therefore, the answer is no.