Fact or Opinion

I compeleted my task called fact and opinion on the highway rat.

I wrote down facts from the story. For example: The duck told the rat she has a sister. 

Then I wrote down my opinion on why the character would do something in the book. 

After that I wrote down adjectives to describe the character traits in the highway rat. For example The duck had to find a way to return the villagers food back. So the duck is helpful, brave, clever, caring, friendly,

Inferring is using clues in the text and my prior knowledge to help my understanding of the text.

I need to work on my opinion because it didn't make sense.