Task: Question Answering
Input (English): Passage: Stephen F. Austin was commander of the existing unpaid volunteer Texian army, and at his urging the Consultation of 1835 convened in San Felipe de Austin on November 3 of that year. Their creation of a provisional government based on the 1824 constitution established the General Council as a legislative body with each municipality allotted one representative. Henry Smith was elected governor without any clearly defined powers of the position. Sam Houston was in attendance as the elected representative from Nacogdoches, and also served as commander of the Nacogdoches militia.  Edward Burleson replaced Austin as commander of the volunteer army on December 1.
On December 10, the General Council called new elections to choose delegates to determine the fate of the region. The Consultation approved the creation of the Provisional Army of Texas, a paid force of 2,500 troops. Houston was named commander-in-chief of the new army and issued a recruitment Proclamation on December 12.
The volunteer army under Burleson disbanded on December 20.Harrisburg was designated the seat of a deeply divided provisional government on December 30. Most of the General Council wanted to remain part of Mexico, but with the restoration of the 1824 constitution.  Governor Smith supported the opposing faction who advocated for complete independence. Smith dissolved the General Council on January 10, 1836, but it was unclear if he had the power to do that. He was impeached on January 11. The power struggle effectively shut down the government.The Convention of 1836 met at Washington-on-the-Brazos on March 1. The following day, the 59 delegates created the Republic of Texas by affixing their signatures to the Texas Declaration of Independence. Houston's military authority was expanded on March 4, to include "the land forces of the Texian army both Regular, Volunteer, and Militia." The delegates elected the Republic's ad interim government on March 16, with David G. Burnet as president, Lorenzo de Zavala as vice president, Samuel P. Carson as secretary of state, Thomas Jefferson Rusk as secretary of war, Bailey Hardeman as secretary of the treasury, Robert Potter as secretary of the navy, and David Thomas as attorney general. 
Question: What is the first name of the person Edward Burleson replaced?
Output (English): Stephen.