a bird is a kind of animal & a living thing is a kind of object & an animal is a kind of living thing ->  a bird is a kind of object  a bird is a kind of animal & animals usually distance themselves from humans ->  birds usually distance themselves from human  a bird is a kind of object & birds usually distance themselves from human ->  birds are distant objects  birds are distant objects & binoculars can be used to observe distant objects -> binoculars can be used to observe birds