YOU SAID:

the paintings were stolen by the thieves. they were later found.

INTO JAPANESE

絵は泥棒に盗まれました。それらは後で発見されました。

BACK INTO ENGLISH

The painting was stolen by a thief. They were discovered later.

INTO JAPANESE

その絵は泥棒に盗まれた。それらは後で発見されました。

BACK INTO ENGLISH

The painting was stolen by a thief. They were discovered later.