• Base Classes
• Halves
• Thirds
• 1/3, 1/3, 1/3
• 1/3, 2/3
• Quarters
• 1/4, 1/4, 1/2
• 3/4, 1/4
• Fifths
• 4/5, 1/5
• 2/5, 3/5
• Complicated Nesting – the AG test