Definition: In this task, you have to generate the title of the recipe given its required ingredients and directions.
Input: ingredients:  '1 1/2 cups Splenda sugar substitute', '1/2 cup boiling water', '2 teaspoons fresh lemon rind, grated', '1 1/2 cups fresh lemon juice', '5 cups cold water',<sep> directions: 'Stir together sugar and 1/2 cup boiling water until sugar dissolves.', 'Stir in lemon rind, lemon juice, and 5 cups cold water.', 'Pour into a 2 quart pitcher.', 'Chill 8 hours.', 'Serve over ice.'

Sugar Free Homemade Lemonade