A clerihew must contain the subject's name in the first line, be four lines in length, consist of two sets of rhyming couplets, have third and fourth lines longer than the first and second, and take a whimsical rather than cynical view of its subject.

If it has rained all day, it must be very wet outside.

The camp monitors look after the children during the night, when the teachers are asleep.

counties adjoining a large city tended to supply most of its milk before highway and trucking improvements broadened the milkshed