Please provide the actual answer to my question in the following JSON format without any introductory and concluding sentences. User is doing a medical record audit and searching for a term called "BP" in "Vital Signs" clinical document type. The search term could be an abbreviation, or a full-form, or a short-hand single letter. Find all contextually relevant medical ontology concepts, relevant semantics, and relevant synonyms for the user search term:
[
{
search_term: "",
related_concepts: [ "" }
}
]