Here's a short story:

WASHINGTON (CNN) -- Eleven-year-old Carl Joseph Walker-Hoover liked football, basketball and playing video games with his little brother. 

Rep. Carolyn McCarthy says the effects of bullying are becoming more severe. 

But on April 6, after enduring what his mother called "relentless" bullying at school, Carl hanged himself with an extension cord in the family's Springfield, Massachusetts, home. 

"What could make a child his age despair so much that he would take his own life? That question haunts me to this day, and I will probably never know the answer," Sirdeaner Walker said in a House Education and Labor Committee hearing on school bullying. 

"He had just started secondary school in September, and we had high hopes," she said. "But I knew something was wrong, almost from the start." Watch Sirdeaner Walker describe finding her son's body » 

He didn't want to say at first, she said, but reluctantly told her of classmates who called him names, "saying he acted gay and calling him faggot," Walker said. 

"Hearing that, my heart just broke," she said. 

Rep. Carolyn McCarthy, D-New York, said the emotional and physical effects of bullying are becoming more severe and that the acts of bullying can continue outside school. 

According to the National Youth Violence Prevention Resource Center, about 30 percent of school-aged children in the United States are estimated to be involved in bullying, as either a bully or the target of a bully. 

Steve Riach, the founder of Heart of a Champion Foundation -- a nonprofit organization that says it offers educators an "innovative and effective approach to developing character in the lives of their students" -- said his organization has learned that students recognize that school safety cannot be accomplished only with security guards and metal detectors.  (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: How many school kids are part of bullying in the U.S.?
Guess: about 30 percent

Question: What role can a kid play?
Guess: a bully or the target

Question: Who put that number out?
Guess: National Youth Violence Prevention Resource Center

Question: Who started the Heart of a Champion Foundation?
Guess: Steve Riach

Question: What two things does he say is not enough to make schools safe?
Guess: security guards and metal detectors

Now answer the following question in the same format.

Question: How old was Carl Joseph Walker-Hoover?

eleven