Here's a short story:

Willie Stewart still remembers his first day of kayaking through the grand Canyon. He was getting bounced around in the roughest white water he had ever seen. There was nothing the river threw at him. 

There he was in a 40-pound boat, with only a few months of training and one arm. Tied to his left shoulder was a prosthetic limb that he'd had for just about a week. The plan was to paddle for 20 days over 227 miles of the roughest white water in the United States. It was one of the most remarkable adventures that the Grand Canyon had ever seen. 

It started with a casual phone call in the spring of 2005. A good friend, Mike Crenshaw, finally got a permit from the National Park Service to lead a private party of 16 boaters down the Colorado River that coming August. He had a slot open for Willie, "Was he interested ?" 

"It was the chance of a lifetime," Stewart said. He had been waiting years for this trip to happen. "How could I refuse ?" 

But before they set off, Stewart had a couple of things to take care of. He had to get a white-water kayak, learn how to use it, and get an arm. 

For most of his life, the _ 45-year-old man has lived with only his right arm. He lost his left arm in a horrible accident when he was 18.Stewart was doing a summer construction job inprefix = st1 /Washington,D.C.The trailing end of rope he was carrying got twisted in an industrial fan. Before he could react, the fan reeled in the rope tight and cut his arm just above the elbow. 

He became a bitter young man, angry at the unfairness of what had happened ,and often got into fights. In time, he learned to channel his rage into sports. He joined a rugby team, established a reputation as a fearless player and eventually was elected captain. His days of rage long gone, he found peace and purpose in his life. (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: Who got a permit to lead a party of boaters down the Colorado River?
Guess: Mike Crenshaw

Question: Who had only one arm?
Guess: Willie Stewart

Question: How old was he when he lost it?
Guess: 18

Question: What kind of job was he doing at the time?
Guess: construction

Question: What got twisted in a fan?
Guess: rope

Question: Were there 15 boaters in the party going down the Colorado?
Guess: No

Question: Where was Stewart kayaking on his first day?
Guess: through the grand Canyon

Question: How much did the boat weigh?
Guess: 40lbs

Question: How many days were they supposed to paddle for?
Guess: 20

Question: Over how many miles?
Guess: 227

Question: When was the phone call about the trip made?
Guess: In the Spring

Question: Of what year?
Guess: 2005

Question: Did Stewart have anything tied over his shoulder?
Guess: Yes

Question: What?
Guess: a prosthetic limb

Question: How long had he had it?
Guess: for just about a week

Question: How old was he?
Guess: 45

Question: Was he mad about what happened to him?
Guess: Yes

Question: How did he act out?
Guess: often got into fights

Question: What positive thing did he learn to do with his anger?
Guess: to channel into sports

Now answer the following question in the same format.

Question: What did he join?

a rugby team