Category Nuances for petrochemical_plant:

• heavy,
• hazardous,
• industrial,
• related,
• large,
• remote,
• commercial,
• specialized,
• coastal,
• small,
• complex,
• agricultural,
• chemical,

Simple Categories for petrochemical_plant:

• factory,
• plant,
• location,
• installation,
• facility,
• user,
• area,
• structure,