Two women are sitting in a living room talking. There are train tracks going through the room and into the next one.
Train tracks don't go through private homes.
Who built these tracks?
Something's different... is that a new lamp?
scene: a living room description: Two women are sitting in a living room talking. There are train tracks going through the room and into the next one. uncanny: Train tracks don't go through private homes. entities: Track_(rail_transport), Meeting. caption: Something's different... is that a new lamp?
People often make small design changes to rooms, and it's usual for guests to notice that something has changed (but perhaps be unable to specifically identify the changed component). The person notices that something is different about the room (obviously: the train tracks are the unusual piece), but fails to identify it, instead pointing towards something more benign.