sentences:  Though the workforce was still relatively fluid in the early years, enough workers remained in Tampa to keep the cigar factories fully staffed and running year-round.Along with the hastily built wooden factories constructed by Ybor and Haya, some of the first structures in Ybor City were 50 small houses ("casitas") for prospective employees.These narrow shotgun-style homes (so called because a shot fired through the front door would theoretically exit harmlessly out of the aligned back door) were small wooden structures, but they were well-built and relatively comfortable.