Task: Explanation
Input (English): Aspen is a common name for certain tree species; some, but not all, are classified by botanists in the section "Populus", of the "Populus" genus. Question: Are both Cylindropuntia and Aspen common names for certain tree species? Answer: no
Output (English): Aspen is a common name for certain tree species; some, but not all, are classified by botanists in the section Populus, of the Populus genus.