{
  "type" : "record",
  "name" : "PerPositionCoverage",
  "namespace" : "edu.wustl.genome.hadoop.coverage",
  "fields" : [ {
    "name" : "chromosome",
    "type" : "string"
  }, {
    "name" : "position",
    "type" : "int"
  }, {
    "name" : "depth",
    "type" : "int"
  } ]
}