Which paper ID cited the most word? In which class label does it belongs to?
most cited word refers to max(word_cited_id);
SELECT T1.paper_id, T1.class_label FROM paper AS T1 INNER JOIN content AS T2 ON T1.paper_id = T2.paper_id GROUP BY T1.paper_id, T1.class_label ORDER BY COUNT(T2.word_cited_id) DESC LIMIT 1
database name:db_id citeseer
cites table cites Cols: cited_paper_id dtype text, citing_paper_id dtype text, 
paper table paper Cols: paper id dtype text, class label dtype text, 
content table content Cols: paper id dtype text, word cited id dtype text, 
