Passage: By 1903 Pankhurst believed that years of moderate speeches and promises about women's suffrage from members of parliament (MPs) had yielded no progress. Although suffrage bills in 1870, 1886, and 1897 had shown promise, each was defeated. She doubted that political parties, with their many agenda items, would ever make women's suffrage a priority. She even broke with the ILP when it refused to focus on Votes for Women. It was necessary to abandon the patient tactics of existing advocacy groups, she believed, in favour of more militant actions. Thus on 10 October 1903 Pankhurst and several colleagues founded the Women's Social and Political Union (WSPU), an organisation open only to women and focused on direct action to win the vote. "Deeds," she wrote later, "not words, was to be our permanent motto."The group's early militancy took non-violent forms. In addition to making speeches and gathering petition signatures, the WSPU organised rallies and published a newsletter called Votes for Women. The group also convened a series of "Women's Parliaments" to coincide with official government sessions. When a bill for women's suffrage was filibustered on 12 May 1905, Pankhurst and other WSPU members began a loud protest outside the Parliament building. Police immediately forced them away from the building, where they regrouped and demanded passage of the bill. Although the bill was never resurrected, Pankhurst considered it a successful demonstration of militancy's power to capture attention. Pankhurst declared in 1906: "We are at last recognized as a political party; we are now in the swim of politics, and are a political force."Before long, all three of her daughters became active with the WSPU. Christabel was arrested after spitting at a policeman during a meeting of the Liberal Party in October 1905; Adela and Sylvia were arrested a year later during a protest outside Parliament. Pankhurst was arrested for the first time in February 1908, when she tried to enter Parliament to deliver a protest resolution to...

Question: What does WSPU stand for?
Women's Social and Political Union