Possible Duplicate:
'Which', 'whose' or something else?
Of course there isn't a word whichs (as far as I know), but I am talking about the possessive form of which.
Sometimes I use 'whose', but sometimes it just seems inappropriate and that 'who' seems a bit unnatural when being used for inanimate things.
Is it only me who thinks this?
Other times I use 'the X of which', but that can seem a bit convoluted sometimes.
Any other suggestions?