What is the chemical name of Vitamin D

Statements:

All hotels are buses.

Some buses are cars.

All cars are trams.

Some trams are clouds.

Conclusions:

Statement

Only a few A is B

All A is C

No C is D

Conclusion

I) No A is D

Statements:

All A are B

All B are C

Some C are D

Conclusion:

I. All B are A

II. Some D are A

Statements:

Some Venice are Godot.

Some Milan are Godot.

Some Italy are Milan.

Conclusions:

Statements:Some mugs are soaps.

Some soaps are taps.

Conclusions:I. Some taps are mugs.

II. No mugs is tap. 

Statement:

I) Some pink are red

II) Some red are green

III) All green are yellow

IV) No yellow is blue

Conclusion:

Statements :

All sparrows are parrots.

No parrot is bird.

All birds are peacocks.

Conclusions: