In A Large Saucepan, Combine 5-1/2 Cups Of Broth, Soup, Rice, Turkey And Pepper. Bring To A Boil; Boil For 3 Minutes. In A Small Bowl, Combine Cornstarch And Remaining Broth Until Smooth. Gradually Stir Into Hot Soup. Cook And Stir For 1-2 Minutes Or Until Thickened And Heated Through. Remove From The Heat; Stir In Lemon Juice And Cilantro.