Teacher: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
Teacher: Now, understand the problem? Solve this instance: Table: ['Rank', 'Name', 'Nationality', 'Time']. ['', 'Mark Henderson', 'United States', '54.11']. ['', 'Eduardo Piccinini', 'Brazil', '54.63']. ['', 'Brian Alderman', 'United States', '54.75']. ['4', 'Francisco Sanchez', 'Venezuela', '54.99']. ['5', 'Edward Parenti', 'Canada', '55.23']. ['6', 'Diego Cuenca', 'Colombia', '55.67']. ['7', 'Jose Meolans', 'Argentina', '55.91']. ['8', 'Ruben Calderon', 'El Salvador', '56.04']
Student:
who swam the men's 100 metre butterfly?