With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dwayne Johnson acts.
text_B: Mount Rubin de la Borbolla is an ice-covered mountain -LRB- 1,090 m -RRB- in the southeast extremity of McDonald Heights , overlooking Johnson Glacier from the west in Marie Byrd Land .. mountain. mountain. McDonald Heights. McDonald Heights. Johnson Glacier. Johnson Glacier. Marie Byrd Land. Marie Byrd Land. Mapped by United States Geological Survey -LRB- USGS -RRB- from surveys and U.S. Navy air photos , 1959-65 .. United States Geological Survey. United States Geological Survey. U.S. Navy. U.S. Navy. Named by Advisory Committee on Antarctic Names -LRB- US-ACAN -RRB- for George S. Rubin de la Borbolla , meteorologist at Plateau Station , 1968 .. Advisory Committee on Antarctic Names. Advisory Committee on Antarctic Names. George S. Rubin de la Borbolla. George S. Rubin de la Borbolla. Plateau Station. Plateau Station. Category  : Mountains of Marie Byrd Land. Marie Byrd Land. Marie Byrd Land
not_related.