diff --git a/build/curriculum/english/animation-assets/sounds/B1 1-1.mp3 b/build/curriculum/english/animation-assets/sounds/B1_1-1.mp3 similarity index 100% rename from build/curriculum/english/animation-assets/sounds/B1 1-1.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_1-1.mp3 diff --git a/build/curriculum/english/animation-assets/sounds/B1 1-2.mp3 b/build/curriculum/english/animation-assets/sounds/B1_1-2.mp3 similarity index 100% rename from build/curriculum/english/animation-assets/sounds/B1 1-2.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_1-2.mp3 diff --git a/build/curriculum/english/animation-assets/sounds/B1 1-3.mp3 b/build/curriculum/english/animation-assets/sounds/B1_1-3.mp3 similarity index 100% rename from build/curriculum/english/animation-assets/sounds/B1 1-3.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_1-3.mp3 diff --git a/build/curriculum/english/animation-assets/sounds/B1 10-1.mp3 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a/build/curriculum/english/animation-assets/sounds/B1 7-2.mp3 b/build/curriculum/english/animation-assets/sounds/B1_7-2.mp3 similarity index 100% rename from build/curriculum/english/animation-assets/sounds/B1 7-2.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_7-2.mp3 diff --git a/build/curriculum/english/animation-assets/sounds/B1 7-3.mp3 b/build/curriculum/english/animation-assets/sounds/B1_7-3.mp3 similarity index 100% rename from build/curriculum/english/animation-assets/sounds/B1 7-3.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_7-3.mp3 diff --git a/build/curriculum/english/animation-assets/sounds/B1 8-1.mp3 b/build/curriculum/english/animation-assets/sounds/B1_8-1.mp3 similarity index 100% rename from build/curriculum/english/animation-assets/sounds/B1 8-1.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_8-1.mp3 diff --git a/build/curriculum/english/animation-assets/sounds/B1 8-2.mp3 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build/curriculum/english/animation-assets/sounds/B1 9-2.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_9-2.mp3 diff --git a/build/curriculum/english/animation-assets/sounds/B1 9-3.mp3 b/build/curriculum/english/animation-assets/sounds/B1_9-3.mp3 similarity index 100% rename from build/curriculum/english/animation-assets/sounds/B1 9-3.mp3 rename to build/curriculum/english/animation-assets/sounds/B1_9-3.mp3