The word Knaped is misspelled against Knapped, which is past tense of "Knap"
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Knapped has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings kna & ed which should not be misspelled with single 'P'
Wrong Spelling:  kna-p-ed 
Correct Spelling:  kna-pp-ed 
Explore spell check of Knapped to spell without errors.