CREATE TABLE table_name_93 (winning_score VARCHAR, margin_of_victory VARCHAR, tournament VARCHAR)

What is the winning score with a margin of victory of 4 strokes for the NEC Invitational tournament?
SELECT winning_score FROM table_name_93 WHERE margin_of_victory = "4 strokes" AND tournament = "nec invitational"
SELECT "winning_score" FROM "table_name_93" WHERE "4 strokes" = "margin_of_victory" AND "nec invitational" = "tournament"