Task: Question Understanding
Input (English): Question: Noah visited a park that had many oak trees. Which best describes the role of an oak tree in its ecosystem? (A) Oak trees can live for a long time. (B) Oak trees have leaves that change colors. (C) Oak trees have strong branches and trunks. (D) Oak trees are a source of food and shelter for animals.?
Output (English): describes, role, tree, ecosystem?