O Either this is not a dog or it is a mammal. O This is either a dog or a mammal. O This is a dog and a mammal. O This is a dog, but it is not a mammal. O This is either a dog or not a mammal. O This is neither a dog nor a mammal. O This is not a dog, but it is a mammal. O Either this is not a dog or it is not a mammal. Check Answer
Fig: 1