(S (S (S (NP (BASENP (DT The) (NN rate)) (PP (IN of) (BASENP (NN attrition)))) (VP (VP (VBD reached) (BASENP (JJ new) (NNS proportions))) (PP (IN in) (BASENP (DT the) (NN year) (NN 2006))))) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBD were) (VP (VBG alarming) (PP (TO to) (NP (BASENP (JJ many) (NNS farmers)) (CC and) (BASENP (JJ honey-bee) (NNS scientists))))))))) (PERIOD .))