Complex sentence: In the first half of the season, Hoffenheim won 35 out of 51 available points, however in the second half, the club won only 20 out of 51 points to drop down to seventh place.
Split into simpler sentences: In the first half of the season, Hoffenheim won 35 out of 51 available points. However, Hoffenheim won only 20 out of 51 points in the second half of the season to drop down to seventh place.