(S (S (S (BASENP (NNP Prime) (NNP Minister) (NNP Yves) (NNP Leterme)) (VP (VP (VP (VBD offered) (NP (BASENP (DT the) (NN resignation)) (PP (IN of) (BASENP (PRPD his) (NN government))))) (PP (IN on) (BASENP (NNP December) (NN 18)))) (PP (TO to) (BASENP (NNP King) (NNP Albert))))) (SBAR (IN after) (NP (BASENP (DT a) (NN crisis)) (VP (VBD erupted) (PP (VBG surrounding) (NP (NP (BASENP (DT the) (NN sale)) (PP (IN of) (BASENP (JJ troubled) (NNP Fortis) (NN bank)))) (PP (TO to) (BASENP (NNP BNP) (NNP Paribas))))))))) (PERIOD .))