给出一个描述人物的段落，要求模型从中提取主要特征并概括说明。
"Tom is a tall, athletic man with short brown hair and a friendly personality. He enjoys playing basketball in his free time and is known for his sense of humor and positive attitude."
主要特征: 

- 外貌特征: 高大、运动型身材、短发、棕色头发
- 个性特征: 友善、幽默、态度积极
- 兴趣爱好: 篮球

概括: Tom是一个高大、运动型身材，短发和棕色头发的男人。他个性友善，幽默且态度积极。他喜欢在空闲时间打篮球。