The word Siping is misspelled against Sipping, which is present continuous of "Sip"
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Sipping has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings si & ing which should not be misspelled with single 'P'
Wrong Spelling:  si-p-ing 
Correct Spelling:  si-pp-ing 
Find more wrongly spelled words of Sipping to spell it well.