Task: Question Generation
Input (English): concept: Mars  answers:  ['Acidalia Colles', 'Aganippe Fossa', 'Acheron Fossae', 'Alba Patera', 'Adirondack', 'Aeolis Mensae', 'Airy-0', 'Airy', 'Aeolis quadrangle', 'Acidalia Planitia']
Output (English): what has been discovered on mars so far?