Answer:
robots are machines that use a computer brain to think
4. The paragraph contains sentences that wander from the main topic
<span>authorities on many a subject, and close with a rhetorical flourish. Lincoln had ... a classroom, Lincoln. Abraham Lincoln and the Second American Revolution ... municator: his skill in the use of figurative language, of ... phors, and they thus lose their power to evoke a vivid image ... How Lincoln Won the War with Metaphors.</span>
