scufl_graph cluster_sinks Workflow Outputs String_Constant String_Constant Split_string_into_string_list_by_regular_expression Split_string_into_string_list_by_regular_expression String_Constant->Split_string_into_string_list_by_regular_expression Concatenate_two_strings Concatenate_two_strings WORKFLOWINTERNALSINK_out1 out1 Concatenate_two_strings->WORKFLOWINTERNALSINK_out1 Split_string_into_string_list_by_regular_expression->Concatenate_two_strings WORKFLOWINTERNALSINKCONTROL