void ParallelComposition(out Process proc, string locality)
 {
     Process ap; ParallelComposition pc = new ParallelComposition();
     ActionPrefix(out ap, locality);
     pc.Add(ap);
     while (la.kind == 12) {
     Get();
     ActionPrefix(out ap, locality);
     pc.Add(ap);
     }
     if (pc.Processes.Count == 1) proc = pc.Processes[0]; else {proc = pc; CopyPos(pc.Processes[0],proc,t);}
 }