在一句英文句子中,小A同学不小心拼错了一个单词,他错误的将book,写成了ruler,请你编程帮他纠正这个错误,输出正确的句子。
读入一个英文句子,句子中仅包含大小写字母、空格和英文的标点(不超过1000个字符),且错写为ruler的单词一定都是小写字母。
输出正确的英文句子。
This is my ruler, your ruler is there.
This is my book, your book is there.
字符串