Suppose we use the following KB (where x, y, z are variables and r1, r2, r3, goal are constants) to determine whether a particular robot can score. (a) Open(x) ∧ HasBall(x) → CanScore(x) (b) Open(x) ∧ CanAssist(y, x) ∧ HasBall(y) → CanScore(x) (c) PathClear(x,y) → CanAsist(x,y) (d) PathClear(x,z) ∧ CanAssist(z,y) → CanAssist(x,y) (e) PathClear(x,goal) → Open(x) (f) PathClear(y,x) → PathClear(x,y) (g) HasBall(r3) (h) PathClear(r1,goal) (i) PathClear(r2,r1) (j) PathClear(r3,r2) (k) PathClear(r3,goal)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Suppose we use the following KB (where x, y, z are variables and r1, r2, r3, goal are constants) to determine whether a particular robot can score.

(a) Open(x) ∧ HasBall(x) → CanScore(x)
(b) Open(x) ∧ CanAssist(y, x) ∧ HasBall(y) → CanScore(x)

(c) PathClear(x,y) → CanAsist(x,y)
(d) PathClear(x,z) ∧ CanAssist(z,y) → CanAssist(x,y)

(e) PathClear(x,goal) → Open(x)
(f) PathClear(y,x) → PathClear(x,y)

(g) HasBall(r3)
(h) PathClear(r1,goal)

(i) PathClear(r2,r1)

(j) PathClear(r3,r2)

(k) PathClear(r3,goal)

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