Category Nuances for null:

• dietary,
• significant,
• animal,
• up,
• traditional,
• rural,
• industrial,
• special,
• natural,
• commercial,
• local,
• agricultural,
• organic,
• smaller,
• bad,
• wet,
• healthy,

Simple Categories for null:

• source,
• thing,
• farm,
• location,
• stuff,
• place,
• work,
• origin,