Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

Input: Consider Input: Profitability index ( PI ) , also known as profit investment ratio ( PIR ) and value investment ratio ( VIR ) , is the ratio of payoff to investment of a proposed project . It is a useful tool for ranking projects because it allows you to quantify the amount of value created per unit of investment .

Output: Profitability index


Input: Consider Input: Leukonychia ( or leuconychia ) , also known as white nails or milk spots , is a medical term for white discolouration appearing on nails . It is derived from the Greek words leuko ( `` white '' ) and nychia ( `` nails '' ) . The most common cause is injury to the base of the nail ( the matrix ) where the nail is formed .

Output: Leukonychia


Input: Consider Input: Six tournaments have so far been played , and only the West Indies , who currently hold the title , has won the tournament on multiple occasions . The inaugural event , the 2007 World Twenty20 , was staged in South Africa , and won by India , who defeated Pakistan in the final at the Wanderers Stadium in Johannesburg . The 2009 tournament took place in England , and was won by the previous runner - up , Pakistan , who defeated Sri Lanka in the final at Lord 's . The third tournament was held in 2010 , hosted by the countries making up the West Indies cricket team . England defeated Australia in the final in Barbados , which was played at Kensington Oval . The fourth tournament , the 2012 World Twenty20 , was held in Asia for the first time , with all matches played in Sri Lanka . The West Indies won the tournament by defeating Sri Lanka in the final , winning its first international tournament since the 2004 Champions Trophy . The fifth tournament , the 2014 ICC World Twenty20 , was hosted by Bangladesh , and was won by Sri Lanka , who became the first team to play in three finals . West Indies are the current World T20I holders , beating England in the 2016 final , winning their second title .


Output: ICC World Twenty20