1. A word cannot begin or end with the letter F
2. A word must include the letter E or O (but NEVER both)
3. A word can never begin with the letter R if the round is even-numbered
4. A word that begins with the letter G must always end with the letter N (or vice versa)
5. A word can ONLY include the letter C if it ends in a vowel
6. A word that has an odd number of syllables must always begin with a consonant