MǎlǐyànàHǎigōu
ㄇㄚˇ ㄌㄧˇ ㄧㄚˋ ㄋㄚˋ ㄏㄞˇ ㄍㄡ
Simplified 马里亚纳海沟
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 馬里亞納海溝 and it comes back until you know it.