Given the sentence "A little boy in a green shirt is attempting to brush his sister's hair while she pulls away." is it true that "A young boy is brushing his sister's hair but she doesn't want him to."? Now, let's be accurate as possible. Some thinking first:
A boy attempting to brush his sister's hair and she pulls away does not imply she doesn't want him to necessarily. So, the answer is it is not possible to tell.