Hi Terry, This part of the install process is still very specific to the UMLS, and isn't really a part of UMLS::Similarity (although obviously we need that in place). You may want to ask this question to the NLM UMLS help line, they tend to be pretty responsive (M-F). Check our Resources - Contact us at : https://www.nlm.nih.gov/research/umls/faq_main.html
Thanks, Ted
