sentence: Trolleybuses are like buses, but they use electricity from two wires above the road.
sentences_before: The main types of public transport are buses, trolleybuses, trams and trains. Trams were first used in the late 1860s and used to be pulled by horses. Now trams are electric and run on a line of cable. Buses drive on the road, like cars do.
sentences_after: Trains run on a track and are very fast. Many places use trams and trains as a form of public transport.
concept_name: trolleybus
headings: Public transport Types of public transport