rtokens: Doctors after the operation said that they had caught the cancer early , and that Havel could fully recover from the surgery within six weeks .
pos: NNP VBZ VBN VBG IN NN IN NNP WDT VBD DT JJ JJ NN CC NN IN PRP$ JJ NN .
tokens: Havel has been recovering from surgery on Monday which removed a small malignant tumour and half of his right lung .
ltokens: After these steps , the president 's condition signigicantly improved . "