With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cancer can be prevented by gaining a healthy weight.
text_B: Headland Peak is a peak rising to 875 m on the north side of Geikie Glacier , at the head of Cumberland West Bay , South Georgia .. Geikie Glacier. Geikie Glacier. Cumberland West Bay. Cumberland West Bay. South Georgia. South Georgia Island. It was named by the UK Antarctic Place-Names Committee for Robert K. Headland , a British Antarctic Survey biological assistant at Grytviken , 1977 -- 80 and 1981 -- 82 .. UK Antarctic Place-Names Committee. UK Antarctic Place-Names Committee. Robert K. Headland. Robert K. Headland. British Antarctic Survey. British Antarctic Survey. Grytviken. Grytviken. He was curator of the Scott Polar Research Institute from 1987 .. Scott Polar Research Institute. Scott Polar Research Institute
not_related.