Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

1. All blazers are dungarees.

2. No dungaree is scarf.

3. All pyjamas are dungarees.

Conclusions:

I. No blazer is scarf.

II. No blazer is pyjama.

III. Some blazers are pyjamas.