Title: 
URL Source: https://jqp.vercel.app/api/v0?url=https%3A%2F%2Fallorigins.hexlet.app%2Fraw%3Furl%3Dhttps%253A%252F%252Fwww.sec.gov%252Ffiles%252Fcounty.json&jq=%5B.regCF_county_2021%5B%5D%7Cselect%28.code%7Ccontains%28%22ma-%22%29%29%5D
Markdown Content:
{"error":"jq: error (at <stdin>:0): Cannot index array with string \\"regCF\_county\_2021\\" ","query":{"url":"https://allorigins.hexlet.app/raw?url=https%3A%2F%2Fwww.sec.gov%2Ffiles%2Fcounty.json","jq":"\[.regCF\_county\_2021\[\]|select(.code|contains(\\"ma-\\"))\]"}}