Array ( [0] => PARC [1] => (Palo [2] => Alto [3] => Research [4] => Center) [5] => was [6] => one [7] => of [8] => the [9] => single [10] => most [11] => important [12] => hubs [13] => of [14] => invention [15] => for [16] => modern [17] => computing )