Table:
text: 1951 German Grand Prix
Race
Race
Driver Constructor_ Laps Time_retired Grid
Alberto Ascari Ferrari 20 3:23:03.3 1
Juan Manuel Fangio Alfa Romeo 20 +30.5 3
José Froilán González Ferrari 20 +4:39.0 2
Luigi Villoresi Ferrari 20 +5:50.2 5
Piero Taruffi Ferrari 20 +7:49.1 6
Rudi Fischer Ferrari 19 +1 lap 8
Robert Manzon Simca-Gordini 19 +1 lap 9
Louis Rosier Talbot-Lago - Talbot 19 +1 lap 15
Pierre Levegh Talbot-Lago - Talbot 18 +2 laps 19
Jacques Swaters Talbot-Lago - Talbot 18 +2 laps 22
Johnny Claes Talbot-Lago - Talbot 17 +3 laps 18
Yves Giraud Cabantous Talbot-Lago - Talbot 17 Accident 11
Maurice Trintignant Simca-Gordini 13 Engine 14

text: 1951 German Grand Prix
Race
Race
Driver Constructor_ Laps Time_retired Grid
Felice Bonetto Alfa Romeo 12 Magneto 10
Duncan Hamilton Talbot-Lago - Talbot 12 Oil pressure 20
Paul Pietsch Alfa Romeo 11 Accident 7
André Simon Simca-Gordini 11 Engine 12
Nino Farina Alfa Romeo 8 Overheating 4
Philippe Étancelin Talbot-Lago - Talbot 4 Gearbox 21
Louis Chiron Talbot-Lago - Talbot 3 Ignition 13
Toni Branca Maserati 3 Engine 17
Toulo de Graffenried Maserati 2 Engine 16

Question: What is the time/retirement for the 1951 German Grand Prix if the grid is less than 13, the constructor is Alfa Romeo and the lap count is more than 12?