Some more information on the position of speech (POS) tags can be found on (Tiger Annotation Schema):
https://www.linguistik.hu-berlin.de/de/institut/professuren/korpuslinguistik/mitarbeiter-innen/hagen/STTS_Tagset_Tiger
Election programs 1949 - 2017
Many thanks to the German parties and their respective endowments for providing the PDFs of the election programs online. In the future, a verified text of the older PDF scans would be great.
Disclaimer
This project wants to promote adoption of open source text analyses tools for German texts. There is no intend to judge, evaluate or comment on election programs. My hope is that it promotes a wider interest in the historic changes that drove election programs, better understand historic context and promotes reading the current election programs.
From what I was reading, the PDFs provided by parties and endowments the PDFs can be used for non-commercial reasons as is. Kindly approach me if this is not the case.