[
    :unit_def,
    [
        :task_def,
        "Complete",
        [
            :trackvar_def,
            "everyoneHappy",
            [
                :event_set,
                "FirstTask:start"
            ],
            [
                :event_set
            ],
            nil
        ],
        [
            :fluent_def,
            "someoneHappy",
            [
                :event_set,
                "DrinkBeer:start",
                "DrinkBeers:start"
            ],
            [
                :event_set,
                "DoNothingSpecial:end"
            ],
            false
        ],
        [
            :trackvar_def,
            "endOfTheDay",
            [
                :event_set
            ],
            [
                :event_set
            ],
            nil
        ],
        [
            :trackvar_def,
            "somethingToDo",
            [
                :event_set
            ],
            [
                :event_set
            ],
            nil
        ],
        [
            :trackvar_def,
            "nothingToDo",
            [
                :event_set
            ],
            [
                :event_set
            ],
            nil
        ],
        [
            :task_def,
            "DrinkBeers",
            [
                :while_st,
                [
                    :bool_expr,
                    [
                        :bool_not,
                        [
                            :var_ref,
                            "drunk"
                        ]
                    ]
                ],
                [
                    :task_call_st,
                    "DrinkBeer"
                ]
            ]
        ],
        [
            :seq_st,
            [
                :task_call_st,
                "FirstTask"
            ],
            [
                :if_st,
                [
                    :bool_expr,
                    [
                        :var_ref,
                        "everyoneHappy"
                    ]
                ],
                [
                    :par_st,
                    [
                        :task_call_st,
                        "MakeJoy"
                    ],
                    [
                        :task_call_st,
                        "DrinkBeers"
                    ]
                ],
                [
                    :else_clause,
                    [
                        :if_st,
                        [
                            :bool_expr,
                            [
                                :var_ref,
                                "someoneHappy"
                            ]
                        ],
                        [
                            :task_call_st,
                            "DrinkBeer"
                        ],
                        [
                            :else_clause,
                            [
                                :task_call_st,
                                "DoNothingSpecial"
                            ]
                        ]
                    ]
                ]
            ],
            [
                :while_st,
                [
                    :bool_expr,
                    [
                        :bool_not,
                        [
                            :var_ref,
                            "endOfTheDay"
                        ]
                    ]
                ],
                [
                    :case_st,
                    [
                        :var_ref,
                        "curState"
                    ],
                    [
                        :when_clause,
                        [
                            :bool_expr,
                            [
                                :var_ref,
                                "somethingToDo"
                            ]
                        ],
                        [
                            :task_call_st,
                            "DoSomething"
                        ]
                    ],
                    [
                        :when_clause,
                        [
                            :bool_expr,
                            [
                                :var_ref,
                                "nothingToDo"
                            ]
                        ],
                        [
                            :task_call_st,
                            "DoNothing"
                        ]
                    ],
                    [
                        :else_clause,
                        [
                            :task_call_st,
                            "WaitAndSee"
                        ]
                    ]
                ]
            ]
        ]
    ]
]