Consider the following premises. Mary is playing a game or Elisabeth is not drinking water. Elisabeth is drinking water and Linda is an office clerk. Can we infer the following from them? Mary is not playing a game.
 From the fact that Mary is playing a game or Elisabeth is not drinking water we can infer that if Elisabeth drinks water, then Mary is playing a game. From the fact that Elisabeth is drinking water and Linda is an office clerk we can infer that Elisabeth is drinking water. Finally, from the fact that if Elisabeth drinks water, then Mary is playing a game, and that Elisabeth is drinking water we can infer that Mary is playing a game, which contradicts that Mary is not playing a game. Therefore, the answer is no.