Task: Pos Tagging
Input (English): What is the chemical formula of the substance involved in a toxicologist 's whistleblowing against the company that was previously one of the Seven Sisters that dominated the global petroleum industry from the mid-1940s until the 1970s ?
Output (English): WP VBZ DT JJ NN IN DT NN VBN IN DT NN POS NN IN DT NN WDT VBD RB CD IN DT NNP NNPS WDT VBD DT JJ NN NN IN DT NN IN DT CD .