IRT Second Avenue Line
The IRT Second Avenue Line , also known as the Second Avenue Elevated or Second Avenue El , was an elevated railway in Manhattan , New York City , United States , from 1878 to 1942 . 
<triplet> IRT Second Avenue Line <subj> New York City <obj> owned by <triplet> Manhattan <subj> New York City <obj> located in the administrative territorial entity <triplet> New York City <subj> IRT Second Avenue Line <obj> owner of <subj> Manhattan <obj> contains administrative territorial entity <subj> United States <obj> country