Air Caribbean was an airline that served from Luis Muñoz Marín International Airport, then "Isla Verde International Airport", in San Juan. The 1970s and 1980s were decades when several Puerto Rican airlines existed and competed against each other, including Prinair, Vieques Air Link and Dorado Wings. Believing a share of the market profits could be gained, Air Caribbean was created in 1975.
Air Caribbean competed against a company with seven letters in its name.
Air Caribbean competed against Prinair, which has a 7 letter name so the statement is correct. the system may have been fooled by having to take two steps to verify.