Category Nuances for null:

• basic,
• free,
• social,
• civic,
• veterinary,
• essential,
• supporting,
• standard,
• appropriate,
• clinical,
• supportive,
• everyday,
• key,
• intermediate,
• individual,
• same,
• additional,
• needed,
• logistical,
• extraordinary,
• urban,
• united,
• protective,
• personal,
• beneficial,
• ordinary,
• necessary,
• common,
• biological,
• physical,
• civil,
• vital,
• desirable,
• logistic,
• remedial,
• useful,
• complicated,
• concrete,
• secondary,
• immediate,
• official,
• commercial,
• municipal,
• valuable,
• external,
• possible,
• practical,
• usual,
• nonproductive,
• moral,
• immaterial,
• complementary,
• operational,
• acute,
• little,
• accessible,
• remote,
• limited,
• productive,
• direct,
• discrete,
• numerous,
• medical,
• military,
• rehabilitative,
• costly,
• temporary,
• important,
• adult,
• tertiary,
• charitable,
• governmental,
• humanitarian,
• comprehensive,
• diverse,
• special,

Simple Categories for null:

• action,
• service,
• activity,
• measure,
• assistance,
• training,
• help,
• state,
• mission,
• information,
• support,
• aid,
• level,
• concern,
• intervention,
• purity,
• works,
• improvement,
• care,
• process,
• event,
• treatment,
• use,
• behavior,
• problem,
• thing,