With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Leroy Jethro Gibbs is a character.
text_B: Leroy Jethro Gibbs is a fictional character of the CBS TV series NCIS , portrayed by Mark Harmon .. Mark Harmon. Mark Harmon. NCIS. NCIS ( TV series ). CBS. CBS. He is a former U.S Marine Corps Scout Sniper turned special agent who commands a team for the Naval Criminal Investigative Service .. Naval Criminal Investigative Service. Naval Criminal Investigative Service. U.S Marine Corps Scout Sniper. United States Marine Corps Scout Sniper. special agent. special agent. Gibbs is the most accomplished marksman on the team and the most skilled at handling violent standoffs ; he depends on his other agents heavily for technical forensics and background checks .. marksman. marksman. forensics. forensics. He is patient but firm with his team and has little patience for bureaucracy ; he commands most other main characters -- including his current staff Timothy McGee , Ellie Bishop , Nick Torres and Alexandra Quinn and previous staff Caitlin Todd -LRB- killed in the line of duty -RRB- , Anthony DiNozzo -LRB- left to look after his newly found daughter -RRB- , and Ziva David -LRB- killed after leaving NCIS -RRB-. NCIS. NCIS ( TV series ). bureaucracy. bureaucracy. Timothy McGee. Timothy McGee. Ellie Bishop. Ellie Bishop. Nick Torres. List of NCIS characters#Nick Torres. Alexandra Quinn. List of NCIS characters#Alexandra Quinn. Caitlin Todd. Caitlin Todd. Anthony DiNozzo. Anthony DiNozzo. Ziva David. Ziva David
related.