Analogy

First is the branch of science which deals with the study of second.

First is followed by the second.

Short is opposite of Tall similarly Loyalty is opposite of Treachery.

A bristle is a part of a brush; a key is a part of a piano.

As the working field of lawyer is Court, similarly the working field of chemist is laboratory.

As Diamond is made of Carbon similarly Ruby is made of Corundum.

As the result of Race is Fatigue similarly the result of Fast is Hunger.

First is the left over of the second.

A petal is a part of a flower; a tire is a part of a bicycle.

First causes the second.