aspect to vs aspect of

[masterding]

Quote from VOA:
Specifically, it says homosexuals have “gifts and qualities” that can benefit the Church, and that homosexual relationships can provide “mutual aid” and “support.”
It also says there are “positive aspects” to the relationship of heterosexual couples who live together out of wedlock - what the Church used to call ‘living in sin.’

My question is:

What's the difference between "aspect to" and "aspect of ", can they be used interchangably?
thanks.

 

[Raymott]

They are different. In some cases you could use either, as in the above.
However, "There's another aspect to it."; "You could look at it from the aspect of homosexuality.
'To' is probably more common in the first example above, and 'of' is the only choice in the second.

 

[tedmc]

I think you use 'to' when you wish to point/ascribe something its source.
You use 'of' to mean something which is produced/developed from its source.

not a teacher