6496
Task-based evaluation using Arabic information retrieval indicates an improvement of 22-38 % in average precision over unstemmed text , and 96 % of the performance of the proprietary stemmer above .
 Arabic information retrieval, Task-based evaluation; average precision, Task-based evaluation; average precision, unstemmed text
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 Arabic information retrieval, Task-based evaluation; average precision, Task-based evaluation; average precision, unstemmed text