YOU SAID:
911 was an inside train
INTO JAPANESE
911は車内の列車でした
BACK INTO ENGLISH
911 was a train in the car
INTO JAPANESE
911は電車の車内だった
BACK INTO ENGLISH
911 was inside a train
INTO JAPANESE
911は列車の中にいた
BACK INTO ENGLISH
911 was on the train
INTO JAPANESE
911は電車に乗っていた
BACK INTO ENGLISH
911 was on the train
Well done, yes, well done!