Table:
text: 1986 German Grand Prix
Classification
Classification
Driver Constructor_ Laps Time_Retired Grid
Nelson Piquet Williams - Honda 44 1:22:08.263 5
Ayrton Senna Lotus - Renault 44 + 15.437 3
Nigel Mansell Williams - Honda 44 + 44.580 6
René Arnoux Ligier - Renault 44 + 1:15.176 8
Keke Rosberg McLaren - TAG 43 Out of Fuel 1
Alain Prost McLaren - TAG 43 Out of Fuel 2
Derek Warwick Brabham - BMW 43 + 1 Lap 20
Patrick Tambay Lola - Ford 43 + 1 Lap 13
Alan Jones Lola - Ford 42 + 2 Laps 19
Gerhard Berger Benetton - BMW 42 + 2 Laps 4

Question: Tell me the time for laps of 42 and grids of 4 in the 1986 German Grand Prix, what is he retired for?