Input (grade 12): In Rome's Piazza Navona, a famous sculpture, Fontana dei Quattro Fiumi (fountain of the four rivers) designed by Gian Lorenzo Bernini was built in 1651.
Output (grade 10): In Rome's Piazza Navona, Fontana dei Quattro Fiumi (fountain of the four rivers) was designed by Gian Lorenzo Bernini and built in 1651.