Certain reductions reduce words to shorter forms, creating pronouns, suffixes and prefixes (morphology). "John wears boots and John wears hats" can be reduced to "John wears boots and he wears hats", where the pronoun "he" is a reduced form of "John". Suffixes and prefixes can be obtained by appending other freely occurring words, or variants of these. "John is able to be liked" can be reduced to "John is likeable". "John is thoughtful" is reduced from "John is full of thought", and "John is anti-war" from "John is against war".