Table:
text: British Rail Class 114
Vehicle numbers
Vehicle numbers
Number_ Type_ Seating Diagram_no Lot_no_ Weight
50000 Driving Motor Brake Second (DMBS) 62 2nd 632 30341 41tons3cwt ( lb or t)
50001–50048 Driving Motor Brake Second (DMBS) 62 2nd 516 30209 37tons10cwt ( lb or t)
50049 Driving Motor Brake Second (DMBS) 62 2nd 516 30459 37tons10cwt ( lb or t)
56000 Driving Trailer Composite with lavatory (DTCL) 12 1st + 62 2nd 641 30342 31tons3cwt ( lb or t)
56001–56049 Driving Trailer Composite with lavatory (DTCL) 12 1st + 62 2nd 641 30210 29tons10cwt ( lb or t)

Question: Which British Rail Class 114 vehicle has a diagram of 516 or less and a second drive motor brake (dmbs)?