Input (grade 12): In May 2009, there were 13 European, 2 African, 35 North American, 1 Singaporean, and 2 Australian institutions that keep Komodo dragons.
Output (grade 12): As of May 2009, there are 13 European, 2 African, 35 North American, 1 Singaporean, and 2 Australian institutions that keep Komodo dragons.