This document discusses long vowel digraphs in the English language. It provides examples of words containing long a spelled "ai" like "paint", long e spelled "ee" and "ea" like "speech" and "feast", and long o spelled "oa" and "ow" like "coast" and "arrow". Each word is defined and an example sentence is given. The purpose is to illustrate how long vowels can be represented by different letter combinations in English.