Input (grade 13): Many asteroids were also discovered at the observatory, including the Trojan asteroids 2223 Sarpedon, 2260 Neoptolemus, 2363 Cebriones, 2456 Palamedes, as well as the eponymous 3494 Purple Mountain.
Output (grade 10): Many asteroids were found at the observatory. Asteroids found include the Trojan asteroids 2223 Sarpedon, 2260 Neoptolemus, 2363 Cebriones, 2456 Palamedes, and 3494 Purple Mountain.