San Jose, Calif. ? The 9-year-old girl abducted from home helped win her release by telling her kidnapper she was sick and then helped authorities make a quick arrest by memorizing his cell phone number, police said.

“I taught my daughter to be very observant and strong,” Roselia Tamayo said Wednesday outside her home. “She knows how to fight.”

New details of the girl’s two-day captivity emerged Wednesday as prosecutors pressed their case against the alleged abductor, Enrique Sosa Alvarez. The 23-year-old was arraigned Wednesday on rape, sexual assault and burglary counts.

Alvarez appeared in court in handcuffs, chains and with his right arm wrapped in gauze. The suspect was attacked by a police dog during his arrest. His next court appearance was set for July 1.

Alvarez’s attorney, public defender Carl Beatty, promised to offer more evidence then.

Authorities marveled at moves Jennette Tamayo made to save herself after being kidnapped as she returned home from school Friday. They said she kept her head as she talked to her abductor, telling him she was ailing.

“It’s as if she established some type of relationship with him so that he saw her as a person,” Deputy Chief Rob Davis said. “To the extent that you can humanize yourself, you can create an opportunity to escape.”

Authorities said that between the girl’s efforts and intense media coverage of her abduction, Alvarez became rattled Sunday night and drove the girl to a convenience store several cities away and “basically told her to get out of the car,” prosecutor Matt Braker said.

Within hours, the girl had supplied authorities with enough key details to help police pinpoint his location. Among the pieces that police believe helped solve the abduction: the girl memorized his cell phone number and also related the delivery of a pizza to the home she was allegedly held.