Given the task definition and input, reply with output. In this task you will be given a question and a passage. You need to determine if the answer to the question is contained in the passage. If the answer can be found in the passage you should output 'True'. If the answer cannot be found in the passage you should output 'False'.

Passage: 'Purchasing power parity (PPP) is a neoclassical economic theory that states that the exchange rate between two countries is equal to the ratio of the currencies' respective purchasing power. Theories that invoke the purchasing power parity assume that in some circumstances (for example, as a long-run tendency) it would cost exactly the same number of, for example, US dollars to buy euros and then buy a market basket of goods as it would cost to directly purchase the market basket of goods with dollars. A fall in either currency's purchasing power would lead to a proportional decrease in that currency's valuation on the foreign exchange market.'. Question: 'what is the area code for houston tx'.

False