Pushdown Automata: Give an English description of the language recognized by the

following PDA$$s state diagram:

start q$1$ q$2$ q$3$ q$4$

$\backslash$epsi $,\backslash$epsi $->$ $ $\backslash$epsi $,\backslash$epsi $->\backslash$epsi $\backslash$epsi $,$ $