Consider the following premises. For all x_5, x_5 is a sailor or x_5 will drink water. For all x_5, x_5 is not a sailor or x_5 will work. If Sarah drinks water, then it is overcast. If Sarah works, then it is overcast. Can we infer the following from them? It is not overcast.
 From the fact that for all x_5, x_5 is a sailor or x_5 will drink water, and that for all x_5, x_5 is not a sailor or x_5 will work we can infer that for all x_5, x_5 will drink water or x_5 will work. From the fact that for all x_5, x_5 will drink water or x_5 will work we can infer that Sarah is drinking water or Sarah is working. Finally, from the fact that if Sarah drinks water, then it is overcast, that if Sarah works, then it is overcast, and that Sarah is drinking water or Sarah is working we can infer that it is overcast, which contradicts that It is not overcast. Therefore, the answer is no.