Teacher:In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Teacher: Now, understand the problem? Solve this instance: For example , the absolute value of a real number is always non-negative , but is not necessarily positive .
Student:
For example , the absolute value of a real number is always " non-negative " , but is not necessarily " positive " in the first interpretation , whereas in the second interpretation it is called " positive " and is not necessarily " strictly positive " .