Lloviendo is the answer mah dude
Answer:
Mi sobrino Eduardo tiente cuarenta y siete años. Es un hombre extrovertido.
Explanation:
Cuarente y sietes años mean 47 years. This would result in the nephew being man which is un hombre in Spanish.
He (Which should be El, but anyway) visto is not correct, because you are talking about someone else. Yo Tengo is correct, because you are staying that you have seen.