With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John F. Kennedy Jr. was dancing in 1960.
text_B: Xanthoparmelia -LRB- rock-shield lichen -RRB- is a genus of foliose lichen in the Parmeliaceae family .. Parmeliaceae. Parmeliaceae. genus. genus. foliose. foliose lichen. lichen. lichen. Xanthoparmelia is synonymous with Almbornia , Neofuscelia , Chondropsis , Namakwa , Paraparmelia , and Xanthomaculina .. This family of lichen is commonly found on the mid-east coast of the United States .. lichen. lichen. The name means ` golden yellow parmelia ' .. The photobiont -LRB- photosynthetic partner -RRB- is trebouxioid -LRB- a genus of algae -RRB- .. genus. genus. algae. algae
not_related.