race, radiator, rage, raid, raid raid, railroad, raised, raises, random patrol, randomized, randomly, rapid growth, rate, rate number, rating, rating possible, ratings, ray-bradbury, raymond, raymond elements, reaction-rate, read books, reader, reading, ready, real, real truth, real-estate, reality reveals, reality-television, really does, reasoning, receiver, recollection, reconstruction, reconstruction-era-of-the-united-states, record, recovered, recreation, recreation area, recruitment, recycling, recycling where possible, red, referendums, referred to as, reforestation, reforms, refusal, region, registers, regular, regulation, regulations, regulatory focus theory, related, relates, relative, relatives, relevant, relief, religion, religious, religious beliefs, religious views, remarkably individualized, remember, ren, report, reports, representatives, represents, republic, republic thailand, required, requires, research, researchers, resort, resource, resources, responses, responsibility, restaurant, restaurants, result, results, retailers, retailing, retraite, retrieval sigir, retrieved, retrieved 2013, retrieved december, retrieved march, retrieved september, retrieved this summer 2014, reveal, revenue, review, revolution, reyes, reyes photography, rhetoric, ribozyme, rich, richard, richard raymond, rift, right, right now there, rights, ringling bros and barnum bailey festival, ripping tools, risk, road, road rage, roadway, robbery, robbins, robbins judge, robbins judge 2013, robert, robert roswell, robert roswell palmer, rodriguez, role, roma, roman, roman-catholic-church, roman-empire, romani people, romo, rosaleen, rosencrantz, rosencrantz guildenstern, ross, roswell, roswell palmer, rotis, route, routine, rowan, royaume, ruben, ruled, russia, russian, russian-empire, russians, rwanda, rwandan-genocide