[R] divided scatter plots

[Caroline Nganga]

I have a data set which contains two columns. The first column is a
list of countries, and the second column contains their political risk
ratings. I would like to create  one large plot that contains 5
different sections, each with a scatter plot. To clarify, I have
divided the countries into 5 groups. For each group (continent), I
would like to have the name of the continent on the x-axis, and points
representing countries and  their risk rating on the y-axis. However,
I want all 5 scatter plots to be in one large plot. What function
should I use to do this? Also, is it possible to label each point?
thanks for any help!