Category Nuances for open_field:

• outdoor,
• suitable,
• natural,
• empty,
• physical,
• familiar,
• temporary,
• hazardous,
• controlled,
• exposed,
• remote,
• strange,
• vegetative,
• safe,
• softer,
• restricted,

Simple Categories for open_field:

• place,
• location,
• space,
• area,
• situation,
• setting,
• surface,
• site,