return
{
  entities =
  {
    {"programmable-speaker", {x = -1, y = -1.5}, {}},
    {"programmable-speaker", {x = -2, y = 0.5}, {}},
    {"power-switch", {x = 0.5, y = 1}, {}},
    {"lighted-small-electric-pole", {x = 3, y = 0.5}, {}},
  },
}