anchor.diff:  http://www.bis.gov.uk/policies/higher-education/research-analysis/research-reports,https://www.gov.uk/government/publications?utf8=%E2%9C%93&keywords=&publication_filter_option=research-and-analysis&topics%5B%5D=higher-education&departments%5B%5D=all,301
   http://www.bis.gov.uk/policies/higher-education/research-analysis/research-reports/measuring-economic-impact-further-education,https://www.gov.uk/government/publications?utf8=%E2%9C%93&keywords=&publication_filter_option=research-and-analysis&topics%5B%5D=higher-education&departments%5B%5D=all,301
   http://www.bis.gov.uk/policies/higher-education/research-analysis/statistical-releases,https://www.gov.uk/government/publications?utf8=%E2%9C%93&keywords=&publication_filter_option=research-and-analysis&topics%5B%5D=higher-education&departments%5B%5D=all,301
  -http://www.bis.gov.uk/policies/higher-education/research-councils-UK,,410
  +http://www.bis.gov.uk/policies/higher-education/research-councils-uk,,410
   http://www.bis.gov.uk/policies/higher-education/students,https://www.gov.uk/government/policies/making-the-higher-education-system-more-efficient-and-diverse,301
   http://www.bis.gov.uk/policies/higher-education/students/student-finance,https://www.gov.uk/government/policies/making-the-higher-education-system-more-efficient-and-diverse,301
   http://www.bis.gov.uk/policies/higher-education/students/student-finance/deferred-entry-2011-to-2012,https://www.gov.uk/government/policies/making-the-higher-education-system-more-efficient-and-diverse,301
  
positive.code: http://www.bis.gov.uk/assets/biscore/better-regulation/docs/t/11-989-transforming-regulatory-enforcement-consultation.pdf,https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/31427/11-989-transforming-regulatory-enforcement-consultation.pdf,301
  http://www.bis.gov.uk/assets/biscore/better-regulation/docs/v/10-1283-voluntary-salt-reduction,https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/31639/10-1283-voluntary-salt-reduction.pdf,301
  http://www.bis.gov.uk/assets/biscore/business-law/docs/10-697-registration-of-charges-created-by-companies-proposals.pdf,https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/31493/10-697-registration-of-charges-created-by-companies-proposals.pdf,301
  http://www.bis.gov.uk/assets/biscore/business-law/docs/I/12-889-improved-transparency-executive-remuneration-impact,https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/31682/12-889-improved-transparency-executive-remuneration-impact.pdf,301
  http://www.bis.gov.uk/assets/biscore/business-law/docs/a/11-1194-audit-exemptions-impact-assessment,https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/31640/11-1194-audit-exemptions-impact-assessment.pdf,301
  http://www.bis.gov.uk/assets/biscore/business-law/docs/a/11-1194-audit-exemptions-impact-assessment.pdf,https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/31542/11-1194-audit-exemptions-impact-assessment.pdf,301
  http://www.bis.gov.uk/assets/biscore/business-law/docs/a/11-1195-amendment-restrictions-for-companies-impact-assessment,https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/31641/11-1195-amendment-restrictions-for-companies-impact-assessment.pdf,301
  
negative.code: http://www.bis.gov.uk/policies/business-sectors/environmental-and-product-regulations/product-regulation/ec-product-directives/atex-directive,https://www.gov.uk/european-commission-product-directives,301
  http://www.bis.gov.uk/policies/business-sectors/environmental-and-product-regulations/product-regulation/ec-product-directives/consumer-safety,https://www.gov.uk/european-commission-product-directives,301
  http://www.bis.gov.uk/policies/business-sectors/environmental-and-product-regulations/product-regulation/ec-product-directives/electrical-equipment-safety-regulations-1994,https://www.gov.uk/european-commission-product-directives,301
  http://www.bis.gov.uk/policies/business-sectors/environmental-and-product-regulations/product-regulation/ec-product-directives/electromagnetic-compatibility-directive-2004-108-ec,https://www.gov.uk/european-commission-product-directives,301
  http://www.bis.gov.uk/policies/business-sectors/environmental-and-product-regulations/product-regulation/ec-product-directives/gas-appliances-directive,https://www.gov.uk/european-commission-product-directives,301
  http://www.bis.gov.uk/policies/business-sectors/environmental-and-product-regulations/product-regulation/ec-product-directives/household-appliances-noise-emission-regulations,https://www.gov.uk/european-commission-product-directives,301
  http://www.bis.gov.uk/policies/business-sectors/environmental-and-product-regulations/product-regulation/ec-product-directives/lifts-directive,https://www.gov.uk/european-commission-product-directives,301
  