flag a quote/sedu'u statement in order to indicate that the text is substantially the same in all relevant important aspects (usually including content), translated with this meaning, "to this/that same effect" - - (nai:) untranslated, original and exact wording
x1 is a logical 'NOT' statement resulting from the (multiplicative) negation of/applying the 'NOT' operator to x2 (du'u); x1 is the logical negation/negative of x2.
Marks an endpoint of a quote/string/expression and specifies that (relative to the original) the quote/string/expression so marked is complete, accurate, and well-portrayed by the quote/string/expression on the relevant side of the excerpt, including wrt all relevant information and when factoring in the content and context of the quotation-external discourse in which said quote/string/expression appears; indicator that quote mining or cherry-picking did not occur and that the excerpt which is quoted is not deceptive.