Statement: climax straight - 4 has lotus 16 , cooper t45 , and cooper t51 chassis

Input Table: bruce halford

Step 1: f_select_row(row 2, row 3, row 4)
year entrant chassis engine points
1956 bruce halford maserati 250f maserati straight - 6 0
1957 bruce halford maserati 250f maserati straight - 6 0
1959 john fisher lotus 16 climax straight - 4 0
1960 fred tuck cars cooper t45 climax straight - 4 0
1960 yeoman credit racing team cooper t51 climax straight - 4 0

Step 2: f_select_column(chassis, engine)
year entrant chassis engine points
1959 john fisher lotus 16 climax straight - 4 0
1960 fred tuck cars cooper t45 climax straight - 4 0
1960 yeoman credit racing team cooper t51 climax straight - 4 0

Step 3: f_group_column(engine)

Step 4: simple_query()
chassis engine
lotus 16 climax straight - 4
cooper t45 climax straight - 4
cooper t51 climax straight - 4

Group Sub Table

engine Count
climax straight - 4 3

Prompting LLM for the final answer... >>>