Statement: climax straight - 4 has a masserati 250f chassis

Input Table: bruce halford

Step 1: f_select_row(row 0, row 1)
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
1956 bruce halford maserati 250f maserati straight - 6 0
1957 bruce halford maserati 250f maserati straight - 6 0

Step 3: simple_query()
chassis engine
maserati 250f maserati straight - 6
maserati 250f maserati straight - 6

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