sentences:  The second issue of Sun Yat-sen definitives was also first issued in 1931, and corrected the inner ring in the sun symbol to a single solid circle.The 1¢ value was not issued in this design, but all the other values in the first issue were reprinted in the same colours.Additional values of 5¢, 15¢ in two colour varieties, and 25¢ were also added.