What was Eric Dickerson's longest run?
{'header': ['Player', 'Games Played', 'Attempts', 'Yards', 'Touchdowns', 'Longest run'], 'page_title': '1985 Los Angeles Rams season', 'page_id': '', 'types': ['text', 'real', 'real', 'real', 'real', 'real'], 'id': '1-11157122-5', 'section_title': 'Rushing', 'caption': 'Rushing', 'rows': [['Eric Dickerson', '14', '292', '1234', '12', '43'], ['Barry Redden', '14', '87', '380', '0', '41'], ['Charles White', '16', '70', '310', '3', '32'], ['Dieter Brock', '15', '20', '38', '0', '13'], ['Lynn Cain', '7', '11', '46', '0', '9'], ['Mike Guman', '8', '11', '32', '0', '6'], ['Jeff Kemp', '5', '5', '0', '0', '3'], ['Henry Ellard', '16', '3', '8', '0', '16'], ['Ron J. Brown', '13', '2', '13', '0', '9']], 'name': 'table_11157122_5'}