With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Santorini is located in the remains of a volcanic caldera.
text_B: Styles Strait is a channel 15 mi long and 6 to wide , separating White Island from Sakellari Peninsula .. channel. Channel ( geography ). White Island. White Island ( Enderby Land ). Sakellari Peninsula. Sakellari Peninsula. It was plotted from air photos taken by Australian National Antarctic Research Expeditions -LRB- ANARE -RRB- in November 1956 , and visited in February 1960 and February 1961 by ANARE -LRB- Thala Dan -RRB- , while led by D.F. Styles , for whom it was named .. ANARE. ANARE. Thala Dan. Thala Dan
not_related.