Interpreting Timetables: When's the Next Train? (3)

Here is a copy of part of a real train timetable, showing the times for four trains travelling from London Euston station.

Ignore all the symbols apart from d and a, which stand for departure and arrival.

The first train leaves London Euston at 0635 and its first stop is at Watford Junction.  It sets off from here at 0650.  It then stops at Milton Keynes Central and then doesn't stop until reaching Coventry at 0744.  Four stops later and it arrives at Wolverhampton at 0836.