Modifiers matching passage:

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

Simple categories matching closed:

• system,
• basin,
• event,
• container,
• tissue,
• appliance,
• passage,
• space,
• circle,
• shape,
• circuit,
• network,
• conveyance,
• industry,
• area,
• collection,
• room,
• luggage,
• sector,
• vehicle,
• polygon,
• unit,
• institution,
• compartment,
• chamber,
• version,
• loop,
• entity,
• surface,
• organization,
• location,
• structure,
• vessel,
• receptacle,
• organisation,
• facility,
• site,
• group,
• housing,
• shoes,
• technique,
• subgroup,
• car,
• hole,
• set,
• atmosphere,
• source,
• tank,
• package,
• building,
• setting,
• business,
• protection,
• form,
• fence,
• pattern,
• channel,
• society,
• cylinder,
• connection,
• pc,
• market,
• object,
• curve,
• community,
• enclosure,
• interface,
• line,
• figure,
• trailer,
• environment,
• conduit,
• volume,
• body,
• audience,
• equipment,
• place,
• fixture,
• part,
• cavity,
• footwear,
• domain,
• quarters,
• pump,
• population,
• installation,
• edifice,
• archive,
• region,
• function,
• wall,
• position,