Complex sentence: In "The Helpless Robot" (1987--96), an electronically synthesized voice asks for the physical assistance of passers-by with a persuasive tone then slowly changes to a more forceful, commanding tone, complaining when the interaction is not being completed properly.
Split into simpler sentences: In "The Helpless Robot" (1987--96), an electronically synthesized voice asks for the physical assistance of passers-by with a persuasive tone. Over time, the voice slowly changes to a more forceful, commanding tone, complaining when the interaction is not being completed properly.