CREATE TABLE table_16162581_1 (simplified_characters VARCHAR2, wade_giles VARCHAR2)

Name the simplified characters for wade giles is ch'ing-y an i-ma
SELECT simplified_characters FROM table_16162581_1 WHERE wade_giles = "ch'ing-yüan … i-ma"
SELECT "simplified_characters" FROM "table_16162581_1" WHERE "ch'ing-yüan … i-ma" = "wade_giles"