Are' Wrote:Any how, why this sentence use "most of them" rather than "most of which are at leasta s large as Jupiter, circling "
Thanks
if you use that version, then you're introducing a certain amount of ambiguity into the attribution of the modifier "...circling...".
namely, because you've introduced a modifier that's a CLAUSE, you have now opened up the possibility that the modifier modifies
that clause, rather than the original phrase it's intended to modify.
this would be bad, because, in this second interpretation, "circling..." would actually be taken to modify just the majority of planets that are at least as large as Jupiter, rather than all the planets in question as intended.
in other words, if you introduce that sort of construction, there are now 2 ways to interpret the sentence:
(1) the intended interpretation: the modifier, which is set off by commas, is to be neglected in the interpretation of the sentence, and "circling" is to be taken as if it followed "planets" immediately, without a comma (because that's the way it would be if the modifier were removed - neither of the commas would be there anymore).
(2) the modifier is to be taken as "comma + -ing", a construction that modifies the preceding
clause. this is the source of the aforementioned ambiguity.
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the original version of (c) is better, because it doesn't possess this ambiguity: (2) is no longer possible, because we can't interpret the modifier as "comma + -ing". if we tried, we'd be stuck in a quandary, because the preceding words are a phrase, not a clause.
interpretation (1), however, still stands: it's a modifier that, in essence, directly follows "planets" and therefore modifies that particular noun.