user: Question: What is the Hanja for McCune-Reischauer of Chŏn?
Columns: ['Hangul', 'Hanja', 'Revised', 'McCune-Reischauer', '2000 n South Korea population *']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['김', '金', 'Gim', 'Kim', 9925949.0]
SQL:

assistant: SELECT "Hanja" FROM "Table" WHERE "McCune-Reischauer" = 'Chŏn';