You are listening to a song on the radio while doing your homework. The phone rings. Your mother has called to tell you that your favorite uncle has died after being hit by a car. Three months later, you again hear the same song and suddenly feel very sad. In this example, the conditioned response is:

Listening to that particular song considered as the kind of conditional feeling which makes will make to associate by recollecting the effects of remembering the sudden demise of my uncle.    

Explanation:

Usually, bad and unexpected events may distract the human brain control. Such incidents can also be witnessed by a coincidence of any other sync activities. Here the song which I happened to hear when I got the sad news of  the sudden demise of my uncle will have high pathetic effects on my inner thought.

Such inner thought will touch my sense of unforgettable memories of my uncle when I hear that particular song tuned on the radio on that particular day. That selective song and the memories of my uncle will be an inseparable moment ringing into my painful feelings will conquer my mental strength even though the tragedy took place before three months.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.

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