Task: Pos Tagging
Input (English): Sentence: Iran 's military also includes holdings of 1,613 main battle tanks , 21,600 other armored fighting vehicles , 3,200 artillery weapons , {{ 306 }} combat aircraft , 60 attack helicopters , 3 submarines , 59 surface combatants , and 10 amphibious ships . " 
Word: 306
Output (English): NUM