Modifiers matching exchange:

• oral,
• formal,
• collaborative,
• cultural,
• foreign,
• current,
• social,
• informal,
• economic,
• electronic,
• involuntary,
• symbolic,
• academic,
• physical,
• medium,
• past,
• organized,
• future,
• meaningful,
• verbal,
• interpersonal,
• prior,
• quantifiable,
• intellectual,
• genetic,
• significant,
• thermal,
• commercial,
• relational,
• military,

Simple categories matching prior:

• activity,
• training,
• education,
• examination,
• knowledge,
• information,
• action,
• contribution,
• discovery,
• modality,
• art,
• event,
• exchange,
• movement,