YOU SAID:
there was an explosion at anime convention
INTO JAPANESE
アニメ大会で爆発があった
BACK INTO ENGLISH
There was an explosion at the animation competition
INTO JAPANESE
アニメーションの競争に爆発がありました
BACK INTO ENGLISH
There was an explosion in the competition of animation
INTO JAPANESE
アニメーションの競争に爆発がありました
BACK INTO ENGLISH
There was an explosion in the competition of animation
That didn't even make that much sense in English.