TASK DEFINITION: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
PROBLEM: Poul Oluf Nyrup Rasmussen ( -RSB- , informally Poul Nyrup , born 15 June 1943 ) , was Prime Minister of Denmark from 25 January 1993 to 27 November 2001 and President of the Party of European Socialists ( PES ) from 2004 to 2011 .

SOLUTION: He was the Prime Minister of Denmark from 25 January 1993 to 27 November 2001 and President of the Party of European Socialists ( PES ) from 2004 to 2011 .

PROBLEM: The four temperament theory is a proto-psychological theory which suggests that there are four fundamental personality types : sanguine , choleric , melancholic , and phlegmatic .

SOLUTION: The temperaments are " sanguine " , " choleric " , " melancholy " , and " phlegmatic " .

PROBLEM: There is no easy way to determine when clothing was first developed , but some information has been inferred by studying lice which estimates the introduction of clothing at roughly 42,000 – 72,000 years ago .

SOLUTION:
Other louse-based estimates put the introduction of clothing at around 42,000 – 72,000 BC .