Statements: Some monitors are keyboard.
All keyboard are laptop.
Some laptop are computer
Some computer are mouse.
Conclusion: I. Some monitors are computer.
II. Some monitors are laptop.
III. Some laptop are keyboard.
IV. No computer is monitor
Some monitors are keyboard(I) + All keyboard are laptop(A) ⇒ Some monitors are laptop(I) + Some laptop are computer(I) ⇒ No conclusion. Hence conclusion I and IV does not follow but they will make a complementary pair. Hence either conclusion I or IV follows. Some monitors are keyboard(I) + All keyboard are laptop(A) ⇒ Some monitors are laptop(I). Hence conclusion II follows. All keyboard are laptop.(A) ⇒ Conversion ⇒ Some laptop are keyboard (I). Hence conclusion III follows.
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