Anshul1223333 wrote:
if we ingnore the word 'how' is parallelism justified? do we really need another 'of' before the 'formation' to make it parallel?
The mechanical parallelism is workable either with or without the second"of":
studies ofX andY
studies ofX and ofY
In this context, it's better to use two instances of "of", for at least two reasons:
• These parallel parts are so long that, without the additional cue provided by the second "of", it's very difficult to recognize
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