Topic refers to a sentence that contains a subject and a priority will most often placed at the first sentence, the last sentence of the text, or other content are often too far from.
Topic mean a sentence containing a subject and focus the mind. Most often placed at the first sentence. The last sentence of the text or Which is usually obtained from meat spots.
Topic mean sentence contains subject and gist Most often placed at the first sentence Or the last sentence of the text, which is often obtained from the passage