conversations.from: human
conversations.value: Explain how to solve this math problem: Sabrina went to the library and found a historical series novel called The Rangers Apprentice. There are 14 books in the series, and each book has 200 pages. She read four books in a month and half the number of books remaining in the second month. What's the total number of pages Sabrina has to read to finish the whole series?
conversations.from: assistant
conversations.value: The total number of pages in the series is 14 books * 200 pages/book = 2800 pages.
  Sabrina read 4 books *200 pages/book = 800 pages in the first month.
  She still has 14 books - 4 books = 10 books after reading four books.
  In the second month, she read 1/2*10 books = 5 books.
  The total number of pages she read is 5 books * 200 pages/book = 1000 in the second month.
  In total, Sabrina 1000 pages + 800 pages = 1800 pages in two months.
  Sabrina has to read 2800 pages - 1800 pages = 1000 more pages to complete the total series.