Question: ACF Fiorentina returned to Serie A, following of how long of an absence, after the bankruptcy of the previous incarnation of the club, Javier García Portillo, a Spanish retired footballer who played as a forward, were among the highly rated players to sign up for Fiorentina, either permanently or on loan?
{'answer': 'two-year', 'supporting_facts': [['2004–05 ACF Fiorentina season', 0], ['Javier Portillo', 0]]}