将下列对话以第三人称改写成一篇110左右单词的短文.
dialogue
the year is 1963 in the usa.two men are talking in prison.
a:why are you in here
b:i was on the march.
a:what march
b:haven't you heard there was a big civil rights march through the center of birmingham yesterday.
a:why was that
b:i imagine you're not very interested in politics.
a:i'm a stranger here.i'm from the west coast.tell me more.
b:it's like this.we black people of birmingham want equal rights.we want the same rights as the white people in the city.for years we've been demanding better housing and jobs.
a:so you're telling me that the situation here is bad for black people.
b:that's right.we're not treated as equal citizens.we cant' go to the public parks or swimming pools.it's forbidden.
a:what happened on the march then
b:i joined in the march and we were marching peacefully along and then the police cam