题目描述

题目描述

见样例

输入格式

见样例

输出格式

见样例

样例

样例 1

输入 # 1

A blockhouse is a small castle that has four openings through which to shoot.

输出 # 1

a:2

blockhouse:1

castle:1

four:1

has:1

is:1

openings:1

shoot:1

small:1

that:1

through:1

to:1

which:1