What is the area of Colonsay Island?
{'header': ['Island', 'Gaelic name', 'Area ( ha )', 'Population', 'Highest point', 'Height (m)'], 'page_title': 'Inner Hebrides', 'page_id': '', 'types': ['text', 'text', 'real', 'real', 'text', 'real'], 'id': '1-143579-1', 'section_title': 'Physical', 'caption': 'Physical', 'rows': [['Coll', 'Colla', '7685', '195', 'Ben Hogh', '104'], ['Colonsay', 'Colbhasa', '4074', '124', 'Carnan Eoin', '104'], ['Eigg', 'Eige', '3049', '83', 'An Sgurr', '393'], ['Islay', 'Ìle', '61956', '3228', 'Beinn Bheigeir', '491'], ['Jura', 'Diùra', '36692', '196', 'Beinn an Òir', '785'], ['Mull', 'Muile', '87535', '2800', 'Ben More', '966'], ['Raasay', 'Ratharsair', '6231', '161', 'Dùn Caan', '444'], ['Rùm', 'Rùm', '10463', '22', 'Askival', '812'], ['Skye', 'An t-Eilean Sgitheanach', '165625', '10008', 'Sgurr Alasdair', '993']], 'name': 'table_143579_1'}