Point in, point of, point to. (Point in the sense of "purpose".) What are the differences among these — in meaning? in usage (each is used in certain constructions or with certain collocates, say)? in dialect? in register? etc.
Some examples (though I'm asking more generally than just about these examples):
(1a) There's no point in going.
(1b) There's no point of going.
(1c) There's no point to going.(2a) Is there a point in his action?
(2b) Is there a point of his action?
(2c) Is there a point to his action?(3a) What's the point in that sculpture's being there?
(3b) What's the point of that sculpture's being there?
(3c) What's the point to that sculpture's being there?