Passage: For the singles competitions, the top 56 players in the world rankings on June 6, 2016 of the WTA and ATP tours are qualified for the Olympics. However, entry has been limited to four players from a country.  This means that players who are ranked in the top 56 but represent the NOCs with four higher-ranked players already participating do not qualify, allowing players who are ranked outside of the top 56 but from countries with fewer than four players already qualified to compete. A player could only participate if he or she has made him- or herself available to be drafted to represent the player's country in Davis Cup or Fed Cup for two of the following years: 2013, 2014, 2015, and 2016, with one of the years being either 2015 or 2016. Of the remaining eight slots, six of them will be determined by the ITF's Olympic Committee, taking into account ranking and spread of nations represented, while the final two slots are awarded by the IOC to players from small nations.In the doubles competitions, 24 teams are automatically qualified for the Games based on the rankings to be published on 6 June 2016, subject to a maximum of two teams per NOC. Players in the top ten of the doubles rankings could reserve a place, provided they had a partner to compete with. Meanwhile, the remaining eight teams were decided by the ITF Olympic Committee.

Question: Players with ranking lower than what can enter if their country has fewer than four players already qualified?
56