The race was marred by the death of Jochen Rindt , who died during the practice session on September 5 and became Formula One 's only posthumous World Champion as to date .
DET NOUN AUX VERB ADP DET NOUN ADP PROPN PROPN , PRON VERB ADP DET NOUN NOUN ADP PROPN NUM CCONJ VERB PROPN PROPN PART ADV ADJ PROPN PROPN ADP ADP NOUN .