Based on the marxist orientation of conflict sociologists, how many distinct social classes exist?

I believe the answer is two social classes.
According to marxist orientation, Those classes are:
- The bourgeoisie, which is the wealthy people that owned most of the capital in a society.
- The  proletariat , which is the working class that have to seek end's meet by selling their labor.

Was giving by lincoln on march 4, 1865-as lincoln prepared to speak, the civil war was drawing to a close-lincolns address of 703 words was the second shortest inaugural address-lincoln mentions god 14 times-505 of the words were one syllable -he used the word "war" or it's pronoun 9 times