Sentence:  <WSD>Service</WSD> running through Barnumville and to Bennington County towns east of the mountains was in the hands of the `` Gleason Telephone Company '' in 1925 , but major supervision of telephone lines in Manchester was with the New England Telephone and Telegraph Company , which eventually gained all control . 
Meaning of the word marked with <WSD> tags:  work done by one person or group that benefits another