灰色の犬が草地でサッカーボールを頭で跳ね返している
灰色の犬が芝生でサッカーボールを頭で跳ね返している
A grey dog is bouncing a soccer ball on its head in a grass field
A grey dog is bouncing a soccer ball on its head on a lawn
A grey dog is bouncing a soccer ball on his head in a grass field .
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