Name the total number of pinyin for hsin-y an-i-ma
CREATE TABLE table_16162581_1 (
    pinyin VARCHAR,
    wade_giles VARCHAR
)
SELECT COUNT(pinyin) FROM table_16162581_1 WHERE wade_giles = "hsin-yüan-i-ma"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the total number of pinyin for hsin-y an-i-ma ### Input: CREATE TABLE table_16162581_1 (
    pinyin VARCHAR,
    wade_giles VARCHAR
) ### Response: SELECT COUNT(pinyin) FROM table_16162581_1 WHERE wade_giles = "hsin-yüan-i-ma"