Hi Amy (and everybody)
I’d like to ask you again about this question.
Please read these 2 sentences:
a.I saw my houses which had been destroyed by the storm.
b.I saw my houses, which had been destroyed by the storm.
Some days ago, I wrote (a) and Amy have corrected into (b). I’m surprised that not only Amy but most of English people, when seeing my sentence, have corrected into (b).
In a: means some houses of mine.
In b: means all of my house.
I think my initial sentence is not strictly ungrammatical. Amy, if you are free, please analyse the situation so that I can see the difference btw them and the reason for that you have changed my sentence.