in a saucepan, combine water, gabi, radish, onion, tomato, and mama sita's sinigang sa sampalok mix. stir and bring to a boil. when the radish and gabi are tender, add the puso ng saging, okra, sitaw, kangkong stalks, and siling pang-sigang. cook over high heat for 3 minutes or until vegetables are tender.