premise: Among the subjects he touches on in his poem are street crime , unemployment , the degradation of the welfare system , tacky urban renewal projects , overcrowding , high rents and unscrupulous landlords , noise , vehicular traffic , congestion , even problems of immigration and integration and true is true and true is true and true is true and true is true and true is true .
hypothesis: This is his first poem that touches on subjects of overcrowding and congestion .