Task: Text Simplification
Input (English): in 1967 , he became chairman of the spd fraction in the landtag , and in 1970 minister of science and education in the cabinet of minister president heinz kühn.
Output (English): in 1967 , he became the chairman for the splinter group , known as the social democratic party of germany , in the german representative assembly , and in 1970 he became the minister of science and eucation for the cabinet of minister-president heinz kühn.