Database: scholar
Question: What are keyphrases by Christof Dallermassl in 2000 ?
SQL:
SELECT DISTINCT t2.keyphraseid FROM paper AS t3 JOIN paperkeyphrase AS t2 ON t3.paperid  =  t2.paperid JOIN writes AS t4 ON t4.paperid  =  t3.paperid JOIN author AS t1 ON t4.authorid  =  t1.authorid WHERE t1.authorname  =  "Christof Dallermassl" AND t3.year  =  2000;