In the first passage, lexicographers are described as diligent and accomplished; they have a number of difficult and complex tasks to do. In the second passage, however, the word lexicographer seems to have a negative connotation, and a dictionary writer is compared unfavorably with a poet. This shift is likely because Johnson had to adjust his plan as he wrote his dictionary and thought that he had not met his lofty goals.
The one you cursor is already on.
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Theme-the subject of a talk, a piece of writing, a person's thoughts, or an exhibition; a topic.
(if this helps well its like the meaning about the story or the thing you know)
The answer is draw attention to :))