i am looking for a museum in the centre of cambridge . can you help me find 1 ?
{'service': 'attraction', 'act': 'recommend', 'slot_name': 'addr', 'value': 'unit su43'} {'service': 'attraction', 'act': 'recommend', 'slot_name': 'addr', 'value': ' grand arcade'} {'service': 'attraction', 'act': 'recommend', 'slot_name': 'addr', 'value': ' saint andrews street'} {'service': 'attraction', 'act': 'recommend', 'slot_name': 'name', 'value': 'castle galleries'} {'service': 'general', 'act': 'reqmore', 'slot_name': 'none', 'value': 'none'} {'service': 'attraction', 'act': 'inform', 'slot_name': 'fee', 'value': 'free '} {'service': 'attraction', 'act': 'inform', 'slot_name': 'type', 'value': 'museums '} {'service': 'attraction', 'act': 'inform', 'slot_name': 'choice', 'value': 'eleven '}
there are 11 museums there . i would recommend the castle galleries , located at unit su43 , grand arcade , saint andrews street . entrance is free there , too . need an alternate recommendation ?