With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ramayanam is a film that has nothing to do with mythology.
text_B: HMS Explorer is an Archer-class P2000-type patrol and training vessel of the British Royal Navy .. patrol. patrol boat. British. United Kingdom. Royal Navy. Royal Navy. The ship is primarily assigned to the Yorkshire Universities Royal Naval Unit -LRB- URNU -RRB- , serving the universities of York , Hull , Sheffield and Leeds .. Royal Naval Unit. University Royal Naval Unit. York. University of York. Hull. University of Hull. Sheffield. University of Sheffield. Leeds. University of Leeds. The ship is based in Kingston-Upon-Hull and mainly operates on the East coast of the UK , particularly in and around the river Humber .. Hull. University of Hull. Kingston-Upon-Hull. Kingston upon Hull. Humber. Humber. HMS Explorer is the second ship to bear the name ; her predecessor was an unarmed experimental Walter-turbine submarine based on the captured German high test peroxide -LRB- HTP -RRB- powered U-boat U-1407 launched in 1956 and scrapped in 1965 .. high test peroxide. high test peroxide. U-boat. U-boat. U-1407. German Type XVIIB submarine. The ship 's current commanding officer is Lt. Fiona Stephenson RN , a former YURNU alumnus , who took over command from Lt Anthony Kane RN in October 2016 .
not_related.