With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: One of the most important people in the Douglas Aircraft Company's history is Donald Wills Douglas, Sr.
text_B: The German Society for Plant Sciences -LRB- also known as German Botanical Society , Deutsche Botanische Gesellschaft , DBG -RRB- is a non-profit network for plant sciences and botany in the German speaking area .. botany. botany. It represents plant scientists , promotes scientific botany nationally and internationally .. botany. botany. It was founded 1882 at Eisenach , Germany .. In September 2015 it comprises 920 individual members and persons working or interested in plant science .. It integrates all plant science disciplines , like plant ecology , plant biochemistry , plant genetics , evolution , plant physiology , morphology and taxonomy .. plant ecology. Botany#Plant ecology. plant biochemistry. Botany#Plant biochemistry. plant genetics. Botany#Genetics. evolution. Botany#Evolution. plant physiology. Botany#Plant physiology. morphology. Botany#Plant anatomy and morphology. taxonomy. Botany#Systematic botany. The society supports young scientists , unites all generations and is member of the Federation of European Societies for Plant Biology -LRB- FESPB -RRB- and associate partner of the European Plant Science Organisation -LRB- EPSO -RRB- .
not_related.