more of the ` laughing at ' variety than the ` laughing with 
(ROOT (NP (NP (JJR more)) (PP (IN of) (NP (DT the) (`` `) (VP (VBG laughing) (PP (IN at) (NP ('' ')))) (NN variety))) (PP (IN than) (NP (DT the) (`` `) (VP (VBG laughing) (PP (IN with)))))))
(ROOT (NP (NP (JJR )) (PP (IN ) (NP (DT ) (`` ) (VP (VBG ) (PP (IN ) (NP ('' )))) (NN ))) (PP (IN ) (NP (DT ) (`` ) (VP (VBG ) (PP (IN )))))))