The property names of your GeoJSON output are single-character names (see below). If this is intentional (to reduce file size, for example) then it should be documented and a mapping from the single-character name to the full name should be provided.
"properties{
"id":578553,
"m":53.7121960079831,
"a":1098780,
"b":81554,
"c":3004,
"o":"O13URF0MNRUAV",
"r":"CENTRAL WAY",
"d":"minor",
"e":202,
...
}