With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sarah Michelle Gellar co-founded a cooking and lifestyle company that sells baking kits for adults.
text_B: Network of practice -LRB- often abbreviated as NoP -RRB- is a concept originated by John Seely Brown and Paul Duguid .. John Seely Brown. John Seely Brown. This concept , related to the work on communities of practice by Jean Lave and Etienne Wenger , refers to the overall set of various types of informal , emergent social networks that facilitate information exchange between individuals with practice-related goals .. communities of practice. community of practice. Jean Lave. Jean Lave. Etienne Wenger. Etienne Wenger. In other words , networks of practice range from communities of practice where learning occurs to electronic networks of practice -LRB- often referred to as virtual or electronic communities -RRB- .. communities of practice. community of practice. learning. learning
not_related.