revision preference src: Women have been engaging in efforts to challenge the gender inequality resulting from purdah. Women in Pakistan (mainly from the middle and upper-classes) organized trade unions and exercise their right to vote and influence decision making. <SEP> tgt: Women have been engaging in efforts to challenge the gender inequality resulting from purdah. For instance, women in Pakistan (mainly from the middle and upper-classes) organized trade unions and exercise their right to vote and influence decision making.