YOU SAID:
A fire emergency has been reported in the building.
INTO JAPANESE
緊急火災は、建物で報告されています。
BACK INTO ENGLISH
Emergency fire has been reported in the building.
INTO JAPANESE
万一の火災は、建物で報告されています。
BACK INTO ENGLISH
Case of fire has been reported in the building.
INTO JAPANESE
火災の場合は、建物に報告されています。
BACK INTO ENGLISH
If the fire has been reported in the building.
INTO JAPANESE
場合は、火災は、建物で報告されています。
BACK INTO ENGLISH
If the fire has been reported in the building.
That didn't even make that much sense in English.