With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Pluto is primarily made of ice and cheese.
text_B: Ethel Nancy Miles Thomas -LRB- 4 October 1876 -- 28 August 1944 -RRB- was a British botanist , best known for her work on double fertilisation in flowering plants as the first British person to publish on the topic .. British. British people. double fertilisation. double fertilisation. flowering plants. flowering plants. Thomas studied at University College London , largely as a research apprentice to Ethel Sargant , receiving her BSc in 1905 .. Ethel Sargant. Ethel Sargant. She joined Bedford College and soon became head of the newly formed botany department .. Bedford College. Bedford College ( London ). Thomas left the Bedford College in 1913 , subsequently holding roles at University of South Wales , National Museum of Wales and in the Women 's Land Army , before settling at University College , Leicester .. Bedford College. Bedford College ( London ). University of South Wales. University of South Wales. National Museum of Wales. National Museum of Wales
not_related.