Table: roberto_guerrero_racing_data
Columns: year
team
chassis
engine
rank
points

Question: Which chassis scored 52 points?
SQL: SELECT "chassis" FROM roberto_guerrero_racing_data WHERE "points" = 52

Question: Which engine scored 6 points and used the march 88c chassis?
SQL: SELECT "engine" FROM roberto_guerrero_racing_data WHERE "points" = 6 AND "chassis" = 'march 88c'