Imagine you are designing a system for two different natural language tasks.

• Task A: Classifying the sentiment of a customer review (e.g., positive or negative). This requires a deep understanding of the entire review's context.
• Task B: Translating a sentence from English to French. This requires understanding the source sentence and then generating a new sentence in the target language.

Compare and contrast the suitability of an "encoder-only" architecture versus an "encoder-decoder" architecture for these two tasks. In your analysis, explain how the flow of information in each architecture makes it either well-suited or poorly-suited for the specific demands of Task A and Task B.