Tomate es aguda grave o esdrujula

Does anyone know what my spanish teacher means by this? i need to use plural forms of the verb ser. and she asked me to use a couple of adjectives to describe the boys collectively and then the girls collectively?

—mi padre, juan, tiene una hermana en cuba. ella es sandra. ellos tienen el pelo —¿cómo es sandra? —es

Francisco oller was one of the first latin american artists to depict the carribean enviroment in a( style