1. Drain syrup from raspberries into a 1 Cup measuring cup.
2. Add enough water to equal 1 cup of liquid.
3. Set raspberries aside.
4. In a 3-quart saucepan over high heat, heat syrup mixture from the raspberries, sugar, pear and cranberries to boiling, stirring occasionally.
5. Reduce heat to low; simmer, uncovered, for about 10 minutes or until cranberries pop.
6. Stir raspberries into mixture.
7. Spoon relish into bowl.
8. Cover and refrigerate until chilled, about 3 hours.