Given the task definition and input, reply with output. In this task, you will be given a passage to read. A fill in the blank question will be given to you.  Your answer should fit the blank appropriately.

 The treaty was signed on May 21 . Díaz resigned accordingly on May 25 . Francisco de la Barra became the interim president . Madero entered Mexico City on June 7 . Zapata however refused to recognize the interim government of de la Barra , and for the time being the fighting in Morelos continued . Madero met with Zapata on several occasions during June . While initially Zapata trusted Madero , with time he became increasingly concerned that the goals of  his revolution were not being fulfilled . He was particularly angry that Madero did not plan on carrying out any kind of agrarian reform , or the breakup of large hacendias . Additionally , the press in Mexico City , controlled by the landowners began referring to Zapata as a bandit and federal generals , such as Huerta , continued attacking his troops under the pretext that Zapata failed to demobilize in violation of the treaty . Sporadic fighting in southern Mexico continued . In November 1911 , shortly after Madero 's inauguration , Zapata issued the famous Plan of Ayala , in which the Zapatistas denounced Madero and instead recognized Pascual Orozco as the rightful president and leader of the revolution . Madero also earned the great displeasure of other revolutionaries , including , Pascual Orozco . Madero 's first act after the treaty was signed was a gesture of reconciliation with the Díaz regime . As a result of the treaty he was given the right to appoint members of the la Barra cabinet . He chose mostly upper class Maderistas , including his wife for the post in the treasury . He also maintained the existing federal system , by keeping the sitting judges of the Supreme Court , the legislators in federal and state assemblies and the bureaucrats of the various federal agencies . fill in the blank  : The __________________ was signed on May 21 . 

 treaty 