The telegraph operator explains that he 'll be glad to help her , then adds , " It 's just 99 cents a word . " Well , with only $ 1 left after paying for the bull , the brunette realizes that she 'll only be able to send her sister one word . After thinking for a few minutes , she nods , and says , " I want you to send her the word , ' comfortable . ' " The telegraph operator shakes his head .
According to the above context, answer the following question.
What happens after the girl sends the word comfortable to her sister ?


The sister knows she 's OK .