Category Nuances for pet_waste:

• natural,
• harmful,
• urban,
• foreign,
• everyday,
• animal,
• potential,
• common,
• up,
• preventable,
• organic,
• detrimental,
• possible,
• fecal,
• hazardous,
• ordinary,

Simple Categories for pet_waste:

• pollutant,
• contamination,
• matter,
• material,
• thing,
• contaminant,
• waste,
• item,