Statements:
Some gates are bricks.
Some bricks are roofs.
All tyres are gates.
Conclusions:
I. Some tyres are bricks.
II. No brick is a tyre.
if only Conclusion I follows
if either I or II follows
if neither I nor II follows
if both I and II follows
Statement
All boxes are trees
All trees are bricks
All bricks are dogs
Conclusions
I. Some dogs are boxes
II. Some bricks are boxes