Also, it should be understood that {HEAD ~ the links} and contents of potential field web sites are taken into {TAIL ~ consideration} when performing a comparative analysis with the target web site to identify field web sites to be used in the data analysis 
Also , it should be understood that { HEAD ~ the links } and contents of potential field web sites are taken into { TAIL ~ consideration } when performing a comparative analysis with the target web site to identify field web sites to be used in the data analysis
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