Modifiers matching happening:

• local,
• social,
• public,
• common,
• technological,
• outlandish,
• planned,
• major,
• internal,
• rural,
• unusual,
• global,
• celestial,
• evil,
• historical,
• unforeseen,
• significant,
• smaller,
• untoward,
• ordinary,
• covered,
• unwanted,
• nasty,
• strange,
• astronomical,
• contemporary,
• past,
• unfortunate,
• unpleasant,
• surrounding,
• disastrous,
• organized,
• familiar,
• climatic,
• unexpected,
• traumatic,
• exciting,
• exceptional,
• natural,
• firm,
• extraordinary,
• cultural,
• important,
• current,
• seasonal,
• dramatic,
• special,
• informal,
• underwater,
• schoolwide,
• horrible,
• paranormal,
• terrible,
• serious,
• national,
• interesting,
• mental,
• everyday,
• abnormal,
• corporate,
• pleasant,
• congregational,
• distant,
• sporting,
• cool,

Simple categories matching underwater:

• object,
• structure,
• happening,
• heritage,
• mound,
• creature,
• mammal,
• surface,
• worker,
• disturbance,
• missile,
• means,
• grass,
• craft,
• duty,
• function,
• predator,
• body,
• substrate,
• event,
• weapon,
• cave,
• animal,
• location,
• shape,
• operation,
• native,
• operations,
• formation,
• feature,
• prop,
• instrumentation,
• vehicle,
• organism,
• killer,
• mission,
• construction,
• job,
• article,
• substance,
• artifact,
• unit,
• plant,
• information,
• cetacean,
• connection,
• facility,
• inhabitant,
• service,
• world,
• munition,
• use,
• gear,
• installation,
• vessel,
• task,
• projection,
• work,
• equipment,
• ordnance,
• obstruction,
• appendage,
• activity,
• weaponry,
• system,
• metal,
• material,
• part,
• explosive,
• life,
• wonder,
• experience,
• sport,
• shock,
• resource,
• prey,
• area,