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Sigma knowledge engineering system is an system for developing, viewing and debugging theories in first order logic. It works with Knowledge Interchange Format (KIF) and is optimized for the Suggested Upper Merged Ontology (SUMO) www.ontologyportal.org.

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package com.articulate.sigma.semRewrite.datesandnumber;

/*
Copyright 2014-2015 IPsoft

Author: Nagaraj Bhat [email protected]
        Rashmi Rao

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program ; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA  02111-1307 USA 
*/


import java.util.List;
import com.articulate.sigma.KBmanager;


public class InterpretNumerics {

    /** ***************************************************************
	 * Returns a list of SU-KIF statements, each corresponding to a date/time/measure found in the input 
	 * natural language string.
	 * @param input: The natural language string.
     * @param substitutor
     * @return List of SU-KIF statements, each date/time/measures are obtained from parser.
	 */
	public static List getSumoTerms(String input) {
		
		StanfordDateTimeExtractor sde = new StanfordDateTimeExtractor();
		List tokensList = sde.populateParserInfo(input);
		DateAndNumbersGeneration generator = new DateAndNumbersGeneration();
		return generator.generateSumoTerms(tokensList, sde);
	}
	
	
	/** ***************************************************************
	 */
	public static void main(String[] args) {
		KBmanager.getMgr().initializeOnce();
        String input = "John was killed on 8/15/2014 at 3:45 PM.";
        System.out.println(input);
        System.out.println(getSumoTerms(input));
        input = "As of 2012, sweet oranges accounted for approximately 70 percent of citrus production.";
        System.out.println(input);
        System.out.println(getSumoTerms(input));
        input = "The standard goal of sigma is to achieve precision to 4.5 standard deviations above or below the mean.";
        System.out.println(input);
        System.out.println(getSumoTerms(input));
        input = "Taj Mahal attracts some 3000000 people a year for visit.";
        System.out.println(input);
        System.out.println(getSumoTerms(input));
        input = "In 2014, Fiat owned 90% of Ferrari.";
        System.out.println(input);
        System.out.println(getSumoTerms(input));
        input = "John killed Mary on 31 March and also in July 1995 by travelling back in time.";
        System.out.println(input);
        System.out.println(getSumoTerms(input));
    }
}