How many such pairs of letter are there in the word

Statements:

Only a few Red are Green.

No Green is Yellow.

No Pink is Red.

Conclusions:

I. Some Red are not Yellow.

Statements: Only cars are motorcycles.

No motorcycle is a bike.

Some bikes are scooters.

All scooters are jeeps.

Statements:

At least some Chlorine are Bromine

Every Bromine are Sulphur

Each Sulphur are Hydrogen

Conclusions:

Statements:

A few Bat is Ball

No Ball is Bails

Only Bails is Pitch

Conclusions:

Statements:

Some hellos are byes.

Some byes are hi.

All hi are long.

All long are far.

Conclusion:

Statements:

Some tablets are laptops.

All laptops are mobiles.

No mobile is a notepad.

Conclusion:

Statement:

Some Boat are Stream

Few Stream are Captain

Only a few Captain are Boat

Conclusion:

Statements:

Some digit are vowel.

No vowel is letter.

All letter are word.

Conclusions:

I. Some vowel are word.

Statements: No triangle is a cuboid.

Some cuboids are pentagons.

All hexagons are cuboids.