With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Borrelia afzelii is the only cause of Lyme disease.
text_B: Bouncy Castle is a collection of APIs used in cryptography .. APIs. Application Programming Interface. cryptography. cryptography. It includes APIs for both the Java and the C# programming languages .. Java. Java ( programming language ). APIs. Application Programming Interface. The APIs are supported by a registered Australian charitable organization  : Legion of the Bouncy Castle Inc. .. APIs. Application Programming Interface. Australian. Australian. charitable organization. charitable organization. Bouncy Castle is Australian in origin and therefore American restrictions on the export of cryptographic software do not apply to it .. Australian. Australian. export of cryptographic software. Export of cryptography in the United States
not_related.