The statements below are followed by conclusions labeled I, II, III and IV. Assuming that the information in the statements is true, even if it appears to be at variance with generally established facts, decide which conclusion(s) logically and definitely follow(s) from the information given in the statements.

Statements:
All Iris are Cornea.
Some Cornea are Lens.
All Lens are Retina.
Conclusions:
I. Some Retina are Cornea
II. Some Retina are Iris
III. Some Lens are Iris
IV. Some Cornea are Retina