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The first boy is happier than the second boy. / The second boy is sadder than the first boy.
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The girl is faster than the boy. / The boy is slower than the girl.
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The fire is hotter than the ice. / The ice is colder than the fire.
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The giraffe is taller than the tiger. / The tiger is shorter than the giraffe.
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The elephant's nose is longer than the pig's nose. / The pig's nose is shorter than the elephant's nose.
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The angel is better than the devil. / The devil is worse than the angel.
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The first monkey is fatter than the second monkey. / The second money is thinner than the first monkey.
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The brown hair is longer than the blonde hair. / The blonde hair is shorter than the brown hair.
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The lion is bigger than the rat. / The rat is smaller than the lion.
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The man is older than the boy. / The boy is younger than the man.