CREATE TABLE table_7871 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Record" TEXT)

What's the score on february 18 when the visitors are the montreal canadiens?
SELECT "Score" FROM table_7871 WHERE "Visitor" = 'montreal canadiens' AND "Date" = 'february 18'
SELECT "Score" FROM "table_7871" WHERE "Date" = 'february 18' AND "Visitor" = 'montreal canadiens'