▁have ▁hom onymous ▁cl it ics : ▁a , ▁de , ▁e , ▁o , ▁te , ▁u ; ▁mi , ▁la , ▁si . ▁ ▁The ▁written ▁acc ent ▁is ▁also ▁used ▁in ▁the ▁inter rog ative ▁pron oun s ▁to ▁distinguish ▁them ▁from ▁relative ▁pron oun s ▁( which ▁are ▁pron ounced ▁the ▁same ▁but ▁un str essed ): ▁▁ ▁' Where ▁are ▁you ▁going ?' ▁ ▁' Where ▁you ▁cannot ▁find ▁me .' ▁ ▁The ▁use ▁of ▁ ▁is ▁po etic ▁for ▁the ▁voc ative : ▁ ▁The ▁use ▁of ▁ ▁in ▁the ▁word ▁ ▁( mean ing ▁' or ') ▁is ▁a ▁hyper cor re ction . ▁Up ▁until ▁ 2 0 1 0 , ▁ ▁was ▁used ▁when ▁applied ▁to ▁numbers : ▁ ▁(' 7 ▁or ▁ 9 '), ▁to ▁avoid ▁possible ▁confusion ▁with ▁the ▁digit ▁ 0 . ▁ ▁The ▁t enth ▁con gress ▁of ▁the ▁Association ▁of ▁Spanish ▁Language ▁Academ ies ▁de emed ▁the ▁use ▁of ▁an ▁acc ent ▁unnecessary , ▁as ▁type writing ▁elimin ates ▁possible ▁confusion ▁due ▁to ▁the ▁different ▁shapes ▁of ▁ ▁( zero ) ▁and ▁ ▁( the ▁letter ). ▁ ▁The ▁differential ▁acc ent ▁is ▁sometimes ▁used ▁in ▁demonstr ative ▁pron oun s ▁( e . ▁g . ▁ ▁' this ▁one ') ▁to ▁distinguish ▁them ▁from ▁demonstr ative ▁determin ers ▁( e . ▁g . ▁ ▁' this ') ▁and ▁in ▁the ▁ad verb ▁ ▁' only ' ▁to ▁distinguish ▁it ▁from ▁the ▁ad jective ▁. ▁However , ▁the ▁current