Job Sequence Scenario

I have 4 Jobs JobA,JobB,JobC,JobD.I need to trigger JobD when any of two Jobs(JobA,JobB,JobC) are successful.

Job Sequence:

How to find the list of sequences that are restart able in a Datastage project?

1)Get the the list of the Jobs using dsjob -ljobs <project> 
2)Identify restartability of Job by using dsjob -jobinfo <project> <job> command[Job Restartable].If the Job Restartable=0 means then that sequence is non-restartable.
3)The step 2 should be repeated for all the Jobs in a project[Use Unix scripting or Loop activity in Datastage]