Task: Text Simplification
Input (English): helene transitioned into a " hybrid " storm with both tropical and extratropical characteristics that afternoon , with both a deep warm core and an asymmetric , frontal-like appearance.
Output (English): helene changed -lrb- from one thing to another -rrb- into a " combination of two things / gas-electric vehicle " storm with both tropical and extratropical characteristics that afternoon , with both a deep , warm core and a -lrb- the left side different from the right side -rrb- , frontal-like appearance.