▁have ▁only ▁a ▁single ▁open ▁v owel , ▁the ▁symbol ▁for ▁this ▁v owel ▁ ▁may ▁be ▁used ▁because ▁it ▁is ▁the ▁only ▁open ▁v owel ▁whose ▁symbol ▁is ▁part ▁of ▁the ▁basic ▁Latin ▁alphabet . ▁When ever ▁marked ▁as ▁such , ▁the ▁v owel ▁is ▁closer ▁to ▁a ▁central ▁ ▁than ▁to ▁a ▁front ▁. ▁However , ▁there ▁may ▁not ▁actually ▁be ▁much ▁of ▁a ▁difference . ▁( See ▁V owel # Ac oust ics .) ▁ ▁Notes ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Category : Open ▁v ow els ▁Category : Front ▁v ow els ▁Category : Un r ounded ▁v ow els <0x0A> </s> ▁E ster ▁Gra ff ▁( 3 ▁May ▁ 1 8 9 7 ▁– ▁ 2 3 ▁January ▁ 1 9 9 1 ) ▁was ▁a ▁Dan ish ▁business w oman ▁and ▁femin ist . ▁She ▁worked ▁for ▁what ▁later ▁became ▁Un ile ver ▁from ▁ 1 9 2 2 , ▁and ▁after ▁World ▁War ▁II ▁became ▁CE O ▁of ▁the ▁Dan ish ▁branch ▁of ▁the ▁market ing ▁b ureau ▁L int as . ▁From ▁ 1 9 5 2 ▁to ▁ 1 9 5 8 , ▁she ▁served ▁as ▁the ▁ 4 th ▁President ▁of ▁the ▁International ▁Alliance ▁of ▁Women . ▁ ▁References ▁ ▁Category : 1 8 9 7 ▁birth s ▁Category : 1 9 9 1 ▁death s ▁Category : Dan ish ▁femin ists <0x0A> </s> ▁U h lov its a ▁() ▁is ▁a ▁show ▁cave ▁in ▁the ▁Blue ▁P ools ▁Area ▁( B