Back in primary school, I swear the rule of apostraphes was drilled into me that inanimate objects could not use the 's construction to show possessiveness. Only people can own things, so one could say Carl’s foot–one could not say the door’s hinges because the door can’t own anything.
For example, in the way I was taught:
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The door’s hinge (not correct, the door can’t own hinges)
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The doors hinge (correct?, the point of contention)
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The hinges of the door (grammatically correct, just forget the whole thing and avoid the issue)
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You stepped on Carl’s foot (correct, I think we can all agree on this one)
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You stepped on Carls foot (incorrect, I think we can all agree)
So you can see, 1 and 2 are where my grasp of the English language seems to be lacking. This is how I have been writing for a very long time, so I would like to know the correct way to use "'s"s. Was this just a preference of one of my teachers? Why have I gone so long without anyone correcting me? I have read in other locations on the internet that the ‘of’ construction in 3 is the preferred way to handle the issue, but yesterday I would have said with 100% certainty that “the doors hinge” used the possessive form correctly.