With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ben Affleck starred in The Voyage of Mimi in 1984 and 1988.
text_B: The Jacobsen Epoxidation , sometimes also referred to as Jacobsen-Katsuki Epoxidation is a chemical reaction which allows enantioselective epoxidation of unfunctionalized alkyl - and aryl - substituted olefins .. chemical reaction. chemical reaction. enantioselective. enantioselective. It is complementary to the Sharpless epoxidation -LRB- used to form epoxides from the double bond in allylic alcohols -RRB- .. Sharpless epoxidation. Sharpless epoxidation. epoxides. epoxides. alcohols. alcohols. The Jacobsen epoxidation gains its stereoselectivity from a C2 symmetric manganese -LRB- III -RRB- salen-like ligand , which is used in catalytic amounts .. stereoselectivity. stereoselective. symmetric. molecular symmetry. salen-like ligand. Salen ligand. catalytic. catalysis. The manganese atom transfers an oxygen atom from chlorine bleach or similar oxidant .. chlorine bleach. chlorine bleach. The reaction is named after its inventor , Eric Jacobsen , and sometimes also including Tsutomu Katsuki .. Eric Jacobsen. Eric Jacobsen. Chiral-directing catalysts are useful to organic chemists trying to control the stereochemistry of biologically active compounds and develop enantiopure drugs .. Several improved procedures have been developed .. A general reaction scheme follows  :
not_related.