% a ; b ; c & d & e & wait ; f & g & h & wait ; i
[1] 16298
[2] 16300
[3] 16301
[4] 16302
[5] 16303
[6] 16304
running g
running a
running e
running h
running d
running f
finished a
running b
finished g

[5]    Done                          g
finished d
finished e

[3]    Done                          e

[2]    Done                          d
finished f
finished h

[6]    Done                          h

[4]    Done                          ( wait; f )
finished b
running c
finished c

[1]    Done                          ( a; b; c )
running i
finished i