"Vegetable gum" . "plant gum" . "gums" . "Natural gum" . "natural gum" . "vegetable gums" . "Gum guiacum" . . "vegetable gum" . . . . "tree gum" . . "Gum" . . . . "herbal gums" . "gum" . "tree gums" . . "Natural gum" .