Four statements are given, followed by three conclusions numbered I, II and III. Assuming that the information given in the statements is true, even if it appears to be different than commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
1. All dusts are natures.
2. No natures are rivers.
3. All waters are rivers.
4. Some liquids are waters.

Conclusions:
I. Some natures are waters.
II. All natures are dusts.
III. All rivers are liquids.