Table: portuguese_grand_prix_1995
Columns: driver
constructor
laps
time_retired
grid

Question: How many laps for ukyo katayama with a grid under 16?
SQL: SELECT COUNT("laps") FROM portuguese_grand_prix_1995 WHERE "driver" = 'ukyo katayama' AND "grid" < 16

Question: What grid has a Time/Retired of +5 laps?
SQL: SELECT "grid" FROM portuguese_grand_prix_1995 WHERE "time_retired" = '+5 laps'