With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In 1988, David Schwimmer graduated from a private university.
text_B: BSSGP is a protocol used in the GPRS mobile packet data system .. GPRS. GPRS. It denotes Base Station System GPRS Protocol .. GPRS. GPRS. Base Station System. Base Station System. Protocol. Communications protocol. It transfers information between two GPRS entities SGSN and BSS over a BSSGP Virtual Connection -LRB- BVC -RRB- .. GPRS. GPRS. SGSN. SGSN. BSS. Base Station Subsystem. This protocol provides radio related Quality of Service and routing information that is required to transmit user data between a BSS and an SGSN .. SGSN. SGSN. BSS. Base Station Subsystem. Quality of Service. Quality of Service. It does not carry out any form of error correction .. error correction. error correction. BSSGP is used to handle the flow control between SGSN and BSS .. SGSN. SGSN. BSS. Base Station Subsystem. The flow control mechanism implemented in SGSN node , only for GSM , is used to prevent congestion and loss of data due to overload in the BSS .. SGSN. SGSN. BSS. Base Station Subsystem. This mechanism controls the flow from the SGSN to the BSS but not in the uplink direction .. SGSN. SGSN. BSS. Base Station Subsystem. The primary functions of BSSGP include  :. Provision by an SGSN to a BSS of a radio related information used by the RLC / MAC function in the download link .. SGSN. SGSN. BSS. Base Station Subsystem. Provision by a BSS to an SGSN of radio related information derived from the RLC / MAC function in the uplink .. SGSN. SGSN. BSS. Base Station Subsystem. Provision of functionality to enable two physically distinct nodes , an SGSN , a BSS , to operate node management control functions -LRB- QoS , flow control -RRB- .. SGSN. SGSN. BSS. Base Station Subsystem. It is specified in 3GPP TS 48.018 .
not_related.