[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-C2-1641":3},{"preview":4,"open":14,"missing":37},{"id":5,"number":6,"total":7,"level":8,"course":9,"activity":10,"discriminator":11,"title":12,"slug":13,"instructions":14,"excerpt":15,"prompts":16,"lock":19,"access":20,"updated":21,"previous_id":22,"next_id":23,"previous":24,"next":28,"first":32},1641,66,70,"C2","reading","multiple_matching","reading_multiple_matching","Vanishing Tongues","vanishing-tongues",null,"Ainu, the language of the indigenous inhabitants of Hokkaido, southern Sakhalin, and the Kuril archipelago, occupies a singular position in comparative linguistics as a language isolate - genetically unrelated to any other known tongue, including the Japonic family that surrounds it - a classification that has…",[17,18],"Which language's structural complexity was deliberately exploited by a military force to create a communication system impenetrable to adversaries?","Which language's demographic catastrophe resulted not from gradual attrition but from the systematic physical destruction of the majority of its speaking population?","login","pro","2026-10-02T14:14:49",1640,1642,{"id":22,"number":25,"title":26,"slug":27},65,"Silent Epidemics","silent-epidemics",{"id":23,"number":29,"title":30,"slug":31},67,"Cartographic Lies","cartographic-lies",{"id":33,"number":34,"title":35,"slug":36},1576,1,"The Art of Saying","the-art-of-saying",false]