Question: Küçüksu Palace and Istanbul Cevahir, are located in Istanbul, in which country?
Sentence (from "Istanbul Cevahir"): Istanbul Cevahir Shopping and Entertainment Centre, also known as Şişli Kültür ve Ticaret Merkezi (Şişli Culture and Trade Centre) is a modern shopping mall located on the Büyükdere Avenue in the Şişli district of Istanbul, Turkey.
Relevant evidence: Yes