Modifiers matching obligation:

• fixed,
• legal,
• published,
• ongoing,
• financial,
• marketable,
• signed,
• economic,
• regular,
• military,
• scholarly,
• secure,
• monetary,
• political,
• small,
• sovereign,
• basic,
• written,
• moral,
• natural,
• monthly,
• ethical,
• public,
• outside,
• professional,
• legislative,
• safe,
• contractual,
• private,
• primary,
• civil,
• governmental,
• corporate,

Simple categories matching safe:

• location,
• area,
• flour,
• point,
• building,
• event,
• forum,
• surface,
• refrigerant,
• substance,
• equipment,
• place,
• way,
• zone,
• shelter,
• material,
• nutrient,
• space,
• object,
• relaxant,
• procedure,
• activity,
• part,
• room,
• housing,
• grain,
• cleanup,
• use,
• facility,
• fabric,
• structure,
• network,
• footwear,
• topic,
• form,
• person,
• practice,
• adhesive,
• layer,
• meat,
• source,
• gas,
• movement,
• thing,
• metal,
• tool,
• market,
• container,
• symbol,
• merchandise,
• document,
• obligation,
• compound,
• instrument,
• section,
• funds,
• fuel,
• people,
• pick,
• antibiotic,
• pass,
• ingredient,
• option,
• item,
• recreation,
• offering,
• unit,
• chemical,
• behavior,
• disposal,
• accommodation,
• job,
• ground,
• situation,
• toy,
• exit,
• sport,
• therapy,
• waste,
• address,
• investment,
• suture,
• stash,
• glass,
• assets,
• language,
• fluid,
• means,
• food,
• medium,
• cultivar,
• composition,
• environment,
• organization,
• product,
• acid,
• site,
• access,
• drug,
• plastic,
• route,
• enclosure,