day, work, journey, struggle, process, experience, war, task, labor, effort, trip, march, job, schedule, business, crop, days, disease, effects, hours, effect, exercise, labour, nature, tour, syringe, toil, labors, night, week, efforts, campaign, climb, ordeal, conflict, pace, diseases, heat, battle, illness, demands, wars, routine, activity, valve, labours, session, round, search, weeks, air, trek, pump, drain, character, ride, strain, influence, game, cough, kind, series, marches, apparatus, tasks, crops, evening, walk, service, climate, fight, months, afternoon, race, occupation, performance, diarrhoea, morning, sweats, drive, run, procedure, jobs, duties, discharges, burden