premise: A white dog with a brown spot over one eye in a pool of blue water with a stick in its mouth. hypothesis: A multi-colored animal holds a long object in it's teeth, and is wet.
entailment: Dogs are animals; having two colours on one's coat (white and brown) means that one has more than one colour on one's coat (as two is greater than one), and is therefore multi-coloured; things that are in a body of water (such as a pool) generally get wet as a direct result; dogs hold objects in their mouths using their teeth (except possibly if the dog in question has severe dental problems), and sticks are a) objects, and b) generally long compared to their widths.