At any instant 2 leads will be at the same voltage and in phase, the rest will be all over the place.
It is bad enough trying to explain what happens in a 3 phase bridge rectifier, it is even worse trying to think in 5 phase.
Pleas believe me (and Hugh) that the rectifier will sort it all out(and without a headache).
If you must try to understand the conduction pattern of a 5 phase rectifier you will be hard pushed to find information.
At any instant a pair of leads will conduct current. As the next highest voltage comes up, the diodes will swap to another lead, next time the other lead will swap and so on. The strings of the diode bridge are absolutely symmetrical, it matters not one iota which leads you connect to which diode string.
Even if you made it 10 phase and swapped half the coil starts and finishes the rectifier would sort it out as long as you reversed the starts of diametrically opposite coils.
flux