1- Given the following graph of possible flights between seven US cities: Omaha Seattle Albany Boston Fresno Dallas Atlanta Write a Prolog program that would check if there is a route from a city A to a city B

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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**Graph of Possible Flights Between Seven US Cities**

The graph depicted in the image displays possible flight routes between seven U.S. cities: Seattle, Fresno, Dallas, Omaha, Albany, Boston, and Atlanta. 

**Details of the Graph:**

- **Nodes (Cities):** The graph consists of seven nodes, each representing a city. The cities are Seattle, Fresno, Dallas, Omaha, Albany, Boston, and Atlanta.
  
- **Edges (Flights):** Directed edges connect the nodes, indicating possible flight paths between the cities. The arrows on the edges show the direction of the flights.

  - From Seattle, there are flights to:
    - Fresno
    - Omaha
  
  - From Fresno, there is a flight to:
    - Dallas

  - From Dallas, there is a flight to:
    - Atlanta
  
  - From Omaha, there are flights to:
    - Seattle
    - Albany
    - Boston

  - From Albany, there are flights to:
    - Atlanta
    - Omaha
 
  - From Boston, there is a flight to:
    - Albany

  - From Atlanta, there are flights to:
    - Dallas
    - Boston

**Task:**

Write a Prolog program to determine if a route exists from city A to city B using the given graph.

This graph and exercise can be used to enhance the understanding of graph theory concepts and Prolog programming.
Transcribed Image Text:**Graph of Possible Flights Between Seven US Cities** The graph depicted in the image displays possible flight routes between seven U.S. cities: Seattle, Fresno, Dallas, Omaha, Albany, Boston, and Atlanta. **Details of the Graph:** - **Nodes (Cities):** The graph consists of seven nodes, each representing a city. The cities are Seattle, Fresno, Dallas, Omaha, Albany, Boston, and Atlanta. - **Edges (Flights):** Directed edges connect the nodes, indicating possible flight paths between the cities. The arrows on the edges show the direction of the flights. - From Seattle, there are flights to: - Fresno - Omaha - From Fresno, there is a flight to: - Dallas - From Dallas, there is a flight to: - Atlanta - From Omaha, there are flights to: - Seattle - Albany - Boston - From Albany, there are flights to: - Atlanta - Omaha - From Boston, there is a flight to: - Albany - From Atlanta, there are flights to: - Dallas - Boston **Task:** Write a Prolog program to determine if a route exists from city A to city B using the given graph. This graph and exercise can be used to enhance the understanding of graph theory concepts and Prolog programming.
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