begins, prolongs, takes, occurs, precedes, dissipates, commences, culminates, shortens, goes, lengthens, fades, lingers, extends, elapses, ends, happens, stays, endures, hibernates, evaporates, wanes, subsides, expires, disappears, persists, varies, survives, recedes, accrues, spans, starts, terminates, completes, comes, recurs, abates, incubation period, dissolves, tapers, cools, sleeps, mellows, renews, decays, ripens, sustains, consumes, slows, closes, regenerates, applies, fluctuates, eats, spawns, melts, disintegrates, ensues, elongates, generates, drags, vanishes, postpones, soaks, erupts, dims, suffices, germinates, ignites, quiets, diminishes, stabilizes, requires, adjourns, departs, outlives, heals, concludes, thickens, reopens, begets, sours, dries, accumulates, idles, unfolds, gets, simmers, leaves, receives, affects, arrives, wait, means, entails, provokes, brightens, ceases, emerges, darkens, dampens, emits

booking, chloroacetophenone, cn gas, engagement, exanthema subitum, haymaking, life tenant, pseudorubella, rave, refresher, restoril, roseola infantilis, roseola infantum, temazepam, transient global amnesia, vaccina, vaccinia, variola vaccina, variola vaccine, variola vaccinia