Consider a knowledge base with these facts: There is a dog called Shadow. John g

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Question

Consider a knowledge base with these facts: There is a dog called Shadow. John gave Shadow to Mary. If Shadow is male, Mary gave a smartphone to John. If Shadow is female, Mary gave John a laptop. John only gives male dogs to people. Mary gave John a laptop.

Convert the above knowledge-base to a first-order logic knowledge base.

For each predicate, function, constant, or variable that you use, explicitly state:

1. What type of entity it is (is it a predicate, function, constant, or variable).

2. What its semantics are (what it means).

Explanation / Answer

Constants-Laptop,Smartphone

Variables - X,Y

Predicates:-

dog(X)- X is a dog

Male(X)-X is a male

Female(X)-X is a female

Gave(X,Y)-Y is given to X

People(Y)- Y belongs to people

Function

Gives(X,Y)- returns X which is to be given to someone by Y

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Consider a k-d Tree which stores 3-dimensional data (i.e. triples (x,y,z) where

Consider a knowledge base with these facts: There is a dog called Shadow. John g

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Consider a knowledge base with these facts: There is a dog called Shadow. John g

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