Who chaired the National Conference on Promotion of Seaweed Cultivation, and where did it take place?

Statement:

At-least some chairs are tables.

A few tables are fans.

Only a few windows are tables.

All tables are doors.

Statements:

No pen is box.

No box is pencil.

No pencil is eraser.

Conclusions:

I. No pen is pencil.

Statements:

No mountain is plane.

No river is mountain. 

Conclusions:

I. No plane is river.

Statements:

Some children are parents.

All parents are infants.

Some infants are adolescent.

Conclusions:

Statements:Some pins are needles.

All needles are ropes.

Some ropes are buckets.

All buckets are trees.

Statements : No painting is a pencil.

Some pencils are drawings.

All drawings are sketches.

Statements:  All bulls are cows.

                              No cow is ox.

Statements:

Only cloth are cotton

Some cloth are Nylon

Only a few Nylon are woolen

Conclusions:

Statements:

All signals are mobile.

Some mobile are expensive.

All expensive are rare.

Conclusion:

Statements:

Some wire are cable.

Some cable are hub.

Only hub is switch.

Some board are hub.

Conclusions: