todomvc/examples/polymer/bower_components/core-selector/bower.json

> Helping you select an MV\* framework

{
  "name": "core-selector",
  "private": true,
  "dependencies": {
    "polymer": "Polymer/polymer#>=0.3.0 <1.0.0",
    "core-selection": "Polymer/core-selection#>=0.3.0 <1.0.0"
  }
}