Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE furniture (market_rate INTEGER)
### Question:
find the total market rate of the furnitures that have the top 2 market shares.
### Answer:
SELECT SUM(market_rate) FROM furniture ORDER BY market_rate DESC LIMIT 2