CREATE TABLE table_name_31 (year_of_disaffiliation INT, station VARCHAR, year_of_affiliation VARCHAR)

What is the most recent year of disaffiliation of a CHCH-TV station that affiliated after 2001?
SELECT MAX(year_of_disaffiliation) FROM table_name_31 WHERE station = "chch-tv" AND year_of_affiliation > 2001
SELECT MAX("year_of_disaffiliation") FROM "table_name_31" WHERE "chch-tv" = "station" AND "year_of_affiliation" > 2001