{ "items" : [
    { "id" : "http://dbpedia.org/resource/Master_mariner"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "A Master Mariner or MM is the professional qualification required for someone to serve as the person in charge or person in command of a commercial vessel. In England, the term Master Mariner has been in use at least since the 13th century, reflecting the fact that in guild or livery company terms, such a person was a master craftsman in this specific profession (e.g. Master Carpenter, Master Blacksmith, etc. [1]).  In the United States, the term was introduced in the mid-19th century."] } } }
