question: What was the name of the database product created by IBM ?
answer: SQL/DS , and , later , Database 2 ( DB2 )
turker_answer: The name of the database product created by IBM was SQL/DS , and later , Database 2 ( DB2 ) .
rule-based: The name of the database product created by IBM was SQL/DS , and , later , Database 2 ( DB2 .