phrase
(when repeated) how great a difference there is between A and B!; how far is A from B !; what is the difference between A and B?; in the same construction, with two nouns, ko is taken as from ka and made to agree with its noun; ko ca (noun) … ko (verb) (an extension of (i)and (ii), where the verb substitutes for a noun, influenced by the sense o/ka as: who am I to, who is competent to…?); how far is one from being able to…; how unworthy is one to…; how different is A from him who …