Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:
• Some violins are pianos.
• All violins are flutes.
• No violin is a guitar.

Conclusions:
I. No guitar is a piano.
II. Some flutes are pianos
III. All flutes are guitars.