Instructions: You are given the conttent of a table in the input (row by row). Generate an unambiguous question based on the information present in the table, such that: 1) It's answer is unique and is in the given table, 2) Its answer is a contiguous text span from the table. Avoid creating questions that can be answered correctly without reading/understanding the table
Input: Table: ['Year', 'Competition', 'Venue', 'Position', 'Notes']. ['1994', 'Commonwealth Games', 'Victoria, Canada', '6th', '400 m h']. ['1995', 'World Championships', 'Gothenburg, Sweden', '6th', '400 m h']. ['1997', 'World Championships', 'Athens, Greece', '7th', '4x400 m relay']. ['1998', 'Commonwealth Games', 'Kuala Lumpur, Malaysia', '3rd', '400 m h']. ['1998', 'African Championships', 'Dakar, Senegal', '2nd', '400 m h']. ['1999', 'All-Africa Games', 'Johannesburg, South Africa', '2nd', '400 m h']
Output:
what races did ken harden run?