With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dustin Hoffman works in Florida.
text_B: Theodor Ketterer -LRB- 1815 - 1884 -RRB- was a renowned Black forest clockmaker who worked in Furtwangen , -LRB- Germany -RRB- .. Black forest clockmaker. Black Forest clockmakers. Furtwangen. Furtwangen. Although his cuckoo clocks were not as popular and known as the ones made by the Beha company , they were of the highest quality and made in low numbers .. cuckoo clocks. cuckoo clocks. Both the cases and movements were similar to the Behas ; however , there are some differences .
not_related.