Despite the hype, the various markov outputs I've seen still produce gibberish more often than not.
It's better to spend the time to "train" your own content generator with not only single word synonym replacement but sentences and paragraphs as well.
Full auto generated human readable content is still a ways away.
Right now if you input something like
"Air travel to New York city is very congested in the Summer"
without a human you might get
"Oxygen movement to recent York large town is very stuffed up in the hot months.
