public void IsEquivalent_InflectedFormOfWord_ReturnsTrue()
        {
            Word word = "monkey";

            word.AddAlternateForm("monkeys");
            Assert.IsTrue(word.IsEquivalent("monkeys"));
        }
        public void IsEquivalent_DifferentWord_ReturnsFalse()
        {
            Word word = "monkey";

            Assert.IsFalse(word.IsEquivalent("frog"));
        }
        public void IsEquivalent_SameWord_ReturnsTrue()
        {
            Word word = "monkey";

            Assert.IsTrue(word.IsEquivalent(word));
        }