Definition: 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'.
Input: Passage: 'Serj Tankian (Western Armenian: Սերժ Թանկեան, pronounced (ˈsɛɾʒ thɑnˈkjɑn); born August 21, 1967) is a Lebanese-born Armenian-American singer-songwriter, composer, multi-instrumentalist, record producer, poet, philosopher and political activist with Armenian descent. He is best known as the lead vocalist, songwriter, keyboardist, and occasional live rhythm guitarist of the metal band System of a Down, formed in 1994.'. Question: 'how old is the lead singer of system of a down'.

True