Vertex: test[A: ${test}]
Vertex: test[B: $]
Vertex: test[C: This is c1]
Vertex: test[D: \$]
Vertex: test[E: {}]
Vertex: test[F: hello]
Vertex: test[G: This is g1 EOF]
Vertex: test[H: {hhh} EOF]
Vertex: test[I: This is ii EOF]
Vertex: test[J: $ is a dollar sign]
Vertex: test[K: $ {zzz} EOF]
Vertex: test[L: $$This is l1 EOF]
Vertex: test[M: $ $$]
Vertex: test[N: hello " world]
Vertex: test[O: hello "" world]
Vertex: test[P: hello \ world]
Vertex: test[Q: hello \\ world]
Vertex: test[R: \This is r1 EOF]
Vertex: test[S: \$ EOF]
Vertex: test[T: newline
EOF]
Vertex: test[U: tab	\	tabEOF]
Vertex: test[W: \$]
Vertex: test[X: $This is x1 EOF]
Vertex: test[Y: ${unused} EOF]
Vertex: test[Z: $$$]
