Назови предмет с нужным звуком

object(ArrayObject)#849 (1) {
  ["storage":"ArrayObject":private] => array(6) {
    ["title"] => string(87) "Урок обучения грамоте. Тема «Звук [ж]. Буквы Ж ж» "
    ["seo_title"] => string(52) "urok-obuchieniia-ghramotie-tiema-zvuk-zh-bukvy-zh-zh"
    ["file_id"] => string(6) "116764"
    ["category_seo"] => string(16) "nachalniyeKlassi"
    ["subcategory_seo"] => string(5) "uroki"
    ["date"] => string(10) "1412607611"
  }
}

object(ArrayObject)#871 (1) {
  ["storage":"ArrayObject":private] => array(6) {
    ["title"] => string(30) "Звук "Ч", буква "Ч""
    ["seo_title"] => string(13) "zvukchbukvach"
    ["file_id"] => string(6) "267370"
    ["category_seo"] => string(12) "russkiyYazik"
    ["subcategory_seo"] => string(5) "uroki"
    ["date"] => string(10) "1450364037"
  }
}

object(ArrayObject)#849 (1) {
  ["storage":"ArrayObject":private] => array(6) {
    ["title"] => string(27) "Звук и буква "ч""
    ["seo_title"] => string(12) "zvukibukvach"
    ["file_id"] => string(6) "267378"
    ["category_seo"] => string(12) "russkiyYazik"
    ["subcategory_seo"] => string(5) "uroki"
    ["date"] => string(10) "1450364738"
  }
}

object(ArrayObject)#871 (1) {
  ["storage":"ArrayObject":private] => array(6) {
    ["title"] => string(36) "Звуки К-Г. Буквы К-Г. "
    ["seo_title"] => string(19) "zvuki-k-g-bukvy-k-g"
    ["file_id"] => string(6) "220445"
    ["category_seo"] => string(21) "doshkolnoeObrazovanie"
    ["subcategory_seo"] => string(5) "uroki"
    ["date"] => string(10) "1434634468"
  }
}

object(ArrayObject)#849 (1) {
  ["storage":"ArrayObject":private] => array(6) {
    ["title"] => string(47) "Тема: "Постановка звука Р" "
    ["seo_title"] => string(24) "tiema-postanovka-zvuka-r"
    ["file_id"] => string(6) "229088"
    ["category_seo"] => string(10) "logopediya"
    ["subcategory_seo"] => string(5) "uroki"
    ["date"] => string(10) "1441609223"
  }
}