p paragraph about trains
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A train is a form of rail transport consisting of a series of vehicles that usually runs along arail track to transport cargo or passengers. Motive power is provided by a separatelocomotive or individual motors in self-propelled multiple units. Although historicallysteam propulsion dominated, the most common modern forms are diesel and electriclocomotives, the latter supplied by overhead wires or additional rails. Other energy sources include horses, engine or water-driven rope or wire winch, gravity, pneumatics, batteries, andgas turbines. Train tracks usually consist of two running rails, sometimes supplemented by additional rails such as electric conducting rails and rack rails, with a limited number ofmonorails and maglev guideways in the mix. The word 'train' comes from the Old Frenchtrahiner, from the Latin word 'pull, draw'.
a train is form of rail transport which contains a series of vehicles which usually run along the track to passengers.trains r used to carry people, cargo, finished goods.the one that Carry passengers r called coaches.the place where the train stops or leaves the passenger is called railway station.