!7

p {
  thread { print("hello"); }
  Thread t = thread { print("t"); };
  Thread t2 = id(thread { print("t"); });
  Thread t3 = returnSecondArgument(null, thread { print("t"); });
  Thread t4 = thread "T4" { print("t4"); };
  thread "T5" { print("t5"); }
}