The appositive is usually a group of words related to a noun, usually a subject, and describes it in more detail.
The appositive here is a river that flows through Egypt.
Another way of easily spotting an appositive is by looking for commas - if it is separated from the rest of the sentence by commas, it is likely to be an appositive.
Simple...
If I remember correctly, Huckleberry Finn did not want his drunken dad to steal all his money and blow it all on unnecessary things (beer), so he tried to give it to Judge Thatcher.
Thus, your answer.
Answer:
An airplane
Explanation:
she was a pilot so the best image would be a airplane