With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Big Brother 18 (UK) is narrated by Marcus Bentley.
text_B: Edwards Pillar is a large rock pillar on the western face of Mount Stinear in the Prince Charles Mountains of Antarctica .. Mount Stinear. Mount Stinear. Prince Charles Mountains. Prince Charles Mountains. The feature is in the vicinity of a geodetic survey station established by the Australian National Antarctic Research Expeditions Prince Charles Mountains survey party in 1971 .. Prince Charles Mountains. Prince Charles Mountains. Australian National Antarctic Research Expeditions. Australian National Antarctic Research Expeditions. It was named for N.F. Edwards , a surveyor with the party .. N.F. Edwards. N.F. Edwards
not_related.