title: NSDictionary getting value
body: <p>I have this response in NSDictionary</p>
  
  <pre><code>Venue {
      canonicalUrl = "https://foursquare.com/v/aeroporto-de-congonhas-cgh/4b2d0e1af964a52037cd24e3";
      categories = ({
              icon = {
                  prefix = "https://foursquare.com/img/categories_v2/travel/airport_";
                  suffix = ".png";
              };
              id = 4bf58dd8d48988d1ed931735;
              name = Aeroporto;
              pluralName = Aeroportos;
              primary = 1;
              shortName = Aeroporto;
          });
      contact = {
          formattedPhone = "+55 11 5090-9000";
          phone = "+551150909000";
          twitter = infraerobrasil;
      };
      hereNow = {
          count = 115;
          groups = ({
                  count = 115;
                  items = ();
                  name = "Outras pessoas aqui";
                  type = others;
              });
      };
      id = 4b2d0e1af964a52037cd24e3;
      likes = {
          count = 0;
          groups = ();
      };
      location = {
          address = "Av. Washington Luiz, S/N";
          cc = BR;
          city = "S\U00e3o Paulo";
          country = Brazil;
          crossStreet = "Av. dos Bandeirantes";
          distance = 2355;
          lat = "-23.62596730840704";
          lng = "-46.65872097015381";
          postalCode = "04626-911";
          state = SP;
      };
      name = "Aeroporto de Congonhas (CGH)";
      referralId = "v-1370609443";
      restricted = 1;
      specials = {
          count = 0;
          items = ();
      };
      stats = {
          checkinsCount = 556928;
          tipCount = 1721;
          usersCount = 126970;
      };
      url = "http://www.infraero.gov.br";
      verified = 0;
  }
  </code></pre>
  
  <p>and I'm trying to get pluralName from category....</p>
  
  <p>My code is: </p>
  
  <pre><code>      -(NSArray*)convertToObjects:(NSArray*)venues{
      NSMutableArray *objects = [NSMutableArray arrayWithCapacity:venues];
      for (NSDictionary *v  in venues) {
          NSLog(@"Venue %@", v);
          NSLog(@"Categoria %@", v[@"categories"][@"pluralName"]); //only here I'm getting error...without this line, name, venue id, address and distance are right
          FSVenue *ann = [[FSVenue alloc]init];
          ann.name = v[@"name"];
          ann.venueId = v[@"id"];
          ann.location.address = v[@"location"][@"address"];
          ann.location.distance = v[@"location"][@"distance"];
          [ann.location setCoordinate:CLLocationCoordinate2DMake([v[@"location"][@"lat"] doubleValue],
                                                        [v[@"location"][@"lng"] doubleValue])];
          [objects addObject:ann];
      }
      return objects;
  }
  </code></pre>
  
  <p>but I'm getting this error: </p>
  
  <blockquote>
    <p>-[__NSCFArray objectForKeyedSubscript:]: unrecognized selector sent to instance 0x1f3e3100 2013-06-07 09:54:51.641 Moodpin[13660:907] <strong>*
    Terminating app due to uncaught exception
    'NSInvalidArgumentException', reason: '-[__NSCFArray
    objectForKeyedSubscript:]: unrecognized selector sent to instance
    0x1f3e3100'
    *</strong> First throw call stack: (0x331172a3 0x3ae3f97f 0x3311ae07 0x33119531 0x33070f68 0xb3cfb 0xe9d9f 0xb8eab 0xba681 0x33a526fd
    0x339921f9 0x33992115 0x32df445f 0x32df3b43 0x32e1bfcb 0x3305d74d
    0x32e1c42b 0x32d8003d 0x330ec683 0x330ebee9 0x330eacb7 0x3305debd
    0x3305dd49 0x36c362eb 0x34f73301 0xd9147 0x3b276b20) libc++abi.dylib:
    terminate called throwing an exception</p>
  </blockquote>