General Intelligence · Syllogism

In the following question, some statements followed by some conclusions are given. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion(s) logically follow(s) from the given statements. Statements: I. All F are S. II. Some S are R. Conclusions: I. Some R are not F. II. No S is F. III. Some S are not R.