Modifiers matching passage:

• hollow,
• related,
• small,
• vertical,
• narrow,
• indoor,
• restricted,
• underground,
• smaller,
• tubular,
• delicate,
• curved,
• linear,
• natural,
• biological,
• closed,
• open,
• complex,
• respiratory,
• internal,
• physical,
• pedestrian,
• vascular,
• written,
• thin,
• fluid,
• transient,
• instrumental,
• aerodynamic,
• long,
• clear,

Simple categories matching pedestrian:

• area,
• traffic,
• covering,
• usage,
• facility,
• space,
• location,
• furnishing,
• access,
• use,
• formation,
• activity,
• furniture,
• safety,
• improvement,
• hazard,
• signal,
• issue,
• feature,
• project,
• cover,
• path,
• measure,
• protection,
• route,
• event,
• flow,
• medium,
• control,
• walkway,
• object,
• pathway,
• surface,
• plaza,
• experience,
• passage,