question: what was meritzer williams's rank in the heat?
table.cells: athlete event heat quarterfinal semifinal final
table.cells: result rank result rank result rank result rank
table.cells: virgil hodge 100 m 11.48 4 q 11.45 4 did not advance
table.cells: 200 m 23.14 3 q 23.17 5 did not advance
table.cells: meritzer williams 200 m 23.83 7 did not advance
table.cells: tiandra ponteen 400 m 52.41 5 n/a did not advance