add additional COCO

app.py

@@ -246,6 +246,8 @@ tabbed_examples = {
         "Prompt 2": "a large banana is placed before a stuffed monkey.",
         "557922": "557922.jpeg",
         "Prompt 3": "a person sitting on a bench using a cell phone",
+        "540554": "540554.jpeg",
+        "Prompt 4": "two trains are coming down the tracks, a steam engine and a modern train.",
     },
     "Portraits": {
         "Snoop": "Snoop Dogg.jpg",