Table:
text: Al Herman
Indy 500 results
Indy 500 results
Year_ Start_ Qual Rank_ Finish Laps
1955 16 139.811 15 7 200
1956 27 141.610 23 28 74
1957 30 140.007 29 21 111
1959 23 141.939 29 13 200
1960 30 141.838 31 32 34
Totals Totals Totals Totals Totals 619

Question: What is the qualification for rank 29 in 1957 under Al Herman?