Grilled Squash and Mushrooms with Fresh Herbs

Name: Grilled Squash and Mushrooms with Fresh Herbs
Ingredients: 3 to 6 sprigs fresh sage or rosemary; 3 tablespoons white wine vinegar; 2 tablespoons chopped fresh sage or rosemary; Sea salt, to taste; Freshly ground black pepper, to taste; 1½ lb. assorted baby squash (zucchini, yellow summer, sunburst, and/or patty pan), halved lengthwise; 6 large (2-inch-diameter) cremini mushrooms, halved lengthwise; 3 lemons, halved