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Understanding the ordering of results for ambiguous place names

If I specify a place name like 'Sutton, United Kingdom' or 'Newport, United Kingdom' and specified the ;start=0;count=0; options in the URL,
then looked at the results in JSON format, I've been trying to understand the meaning behind things like
placeTypeName attrs":{"code":7}
1) Where is there a description for what 7 and all the other values represent?
2) Why does popRank/areaRank only appear infrequently?

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  • I now realise there is a direct correlation between placeTypeName and placeTypeName attrs:[code:]...
    But the question as to how ranking is derived still stands.\
    I've also been looking at
    // http://developer.yahoo.com/geo/geoplanet/g....html#hierarchy
    I'f a difficult thing to get your head around because so many countries do things differently.
    For example Local Administrative Area here in UK.
    I've noticed names of places with accented characters do not get properly resolved too.
    I've heard through grapevine that IBM has written some sort of normalisation library to resolve this.
    Also had issues with specific data: Arhus, Zurich, Hyderabad, Koln, Poznan.
    Geographic areas like Cleveland/Akron, Dallas/Fort Worth, Raleigh/Durham, Tampa/St. Petersburg, Minneapolis/St. Paul...
    have had to do two calls and resolve median centriod
    Basel is oddly identifed as Basel-City
    Bern -> Berne Switzerland
    Gent -> Ghent Belgium
    Brussels - recorded as Bruxelles..
    Weird things like Almere Stad where Stad = City
    Adelaide Australia - resolves to two results - my knowledge of Aussie geography makes it hard for me to predict right anwer without knowing the ranking process..
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