Given the sentence "A man wearing a white shirt and black pants balances at the top of a red ladder as it leans against a brick building." is it true that "A man on a ladder is doing repairs on a building."? Now, let's be accurate as possible. Some thinking first:
A man balances at the top of a ladder as it leans against a brick building does not infer a man on a ladder is doing repairs on a building. So, the answer is it is not possible to tell.