In medium bowl, combine all relish ingredients; mix well. Let stand at room temperature for about 1 hour or refrigerate up to 4 hours to blend flavors.
Heat oven to 350°F. Line 2 cookie sheets with foil. Cut each pita bread into 6 wedges. Split each wedge to make a total of 24 wedges; place on foil-lined cookie sheets. Brush wedges with 2 tablespoons oil.
Bake at 350°F. for 5 to 8 minutes or until crisp. Cool 10 minutes. Serve pita triangles with relish.