user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: Where did the Energy development public speaker receive his bachelor's degree? 
Knowledge Triplets: m.0zfygrt, education.education.institution, Columbia University
m.0cpldhq, education.education.institution, Columbia University
m.04hjhjt, education.education.institution, Columbia University
m.0w5bdnr, education.education.institution, Columbia University
m.05yzdsz, education.education.institution, Columbia University
m.0znmjkd, education.education.institution, Columbia University
m.0zfdwqq, education.education.institution, Columbia University
m.02wpgmn, education.education.degree, Bachelor of Science
m.0n15shd, education.education.institution, Columbia University
m.0gmjksz, education.education.institution, Columbia University
m.04lnrjr, education.education.institution, Columbia University
Energy development, event.speech_topic.speeches_or_presentations_on_this_topic, m.0j31vdq
m.0w5fngp, education.education.institution, Columbia University
m.0dlqhft, education.education.institution, Columbia University
m.0zdgchn, education.education.institution, Columbia University
m.02wphmf, education.education.institution, Columbia University
m.02wnmrg, education.education.institution, Columbia University
m.0bmyhmp, education.education.institution, Columbia University
Bachelor of Arts, common.topic.image, Bachelorâs degree
m.05yzqcs, education.education.institution, Columbia University
m.02wpkrl, education.education.institution, Columbia University
m.04lpfwh, education.education.institution, Columbia University
m.04lnlzb, education.education.institution, Columbia University
m.059twqf, education.education.degree, Bachelor's degree
m.0znv3fd, education.education.institution, Columbia University
m.063vhtb, education.education.degree, Bachelor's degree
m.0kfc8nr, education.education.institution, Columbia University
m.05yzwlz, education.education.institution, Columbia University
m.04m6010, education.education.degree, Master of Public Administration
m.04lnybv, education.education.institution, Columbia University
m.07lhdcm, education.education.institution, Columbia University
m.02wnmg5, education.education.degree, Bachelor's degree
m.0n18zhl, education.education.institution, Columbia University
m.0ybkkhm, education.education.institution, Columbia University
Geothermal energy, business.industry.parent_industry, Energy development
m.0dlqdmh, education.education.institution, Columbia University
m.0svydgt, education.education.institution, Columbia University
m.0mzvftb, education.education.institution, Columbia University
m.0jzrqdc, education.education.institution, Columbia University
m.0fplgpm, education.education.institution, Columbia University
Energy development, base.descriptive_names.names.descriptive_name, m.010lbf4j
m.02wncdz, education.education.institution, Columbia University
m.0svzsqh, education.education.institution, Columbia University
m.02wmqzk, education.education.institution, Columbia University
m.0nd8416, education.education.degree, Bachelor of Arts
Bachelor of Arts, education.education.degree, m.02wn48x
m.05yzwbq, education.education.institution, Columbia University
m.0fpkzpc, education.education.institution, Columbia University
Energy development, common.topic.image, Moss Landing Power Plant p1270026
m.0w5mhxg, education.education.institution, Columbia University
m.049y429, education.education.degree, Bachelor of Arts
m.0wzntrp, education.education.institution, Columbia University
m.07ltwvm, education.education.institution, Columbia University
m.0dw0qzm, education.education.institution, Columbia University
m.0g5bshm, education.education.institution, Columbia University
m.07yy3y5, education.education.degree, Bachelor of Arts
m.05yzhtt, education.education.institution, Columbia University
m.04lnkgc, education.education.institution, Columbia University
m.02wncdp, education.education.institution, Columbia University
m.0zfycrc, education.education.institution, Columbia University
m.04hghns, education.education.institution, Columbia University
m.02wpdkr, education.education.degree, Bachelor of Science
Energy development, base.descriptive_names.names.descriptive_name, m.010lbfff
m.02wpktr, education.education.institution, Columbia University
m.04fntny, education.education.degree, Bachelor of Laws
m.02wnqvd, education.education.degree, PhD
m.04hllds, education.education.institution, Columbia University
m.04htl5g, education.education.institution, Columbia University
m.02wmrjc, education.education.institution, Columbia University
m.05yykqz, education.education.institution, Columbia University
m.0dj15dm, education.education.institution, Columbia University
m.02wpqnm, education.education.institution, Columbia University
m.0svyv4b, education.education.institution, Columbia University
m.04hqylt, education.education.institution, Columbia University
m.0svzmqb, education.education.institution, Columbia University
m.0k3gdyf, education.education.institution, Columbia University
m.010r84zx, education.education.degree, Bachelor of Arts
m.0zhwzjt, education.education.institution, Columbia University
m.012r33x1, education.education.degree, Master of Public Health
m.0cplfdk, education.education.institution, Columbia University
m.02wmwck, education.education.institution, Columbia University
m.02wpvyl, education.education.institution, Columbia University
m.02wnmkg, education.education.institution, Columbia University
m.02wmrpf, education.education.institution, Columbia University
m.02wpgxg, education.education.institution, Columbia University
m.02wnbjc, education.education.degree, Bachelor of Arts
m.0ggghmd, education.education.institution, Columbia University
m.02wprg6, education.education.degree, Bachelor of Science
m.04hwbkq, education.education.institution, Columbia University
Solar thermal energy, business.industry.parent_industry, Energy development
m.02wmqyf, education.education.institution, Columbia University
m.0ggggzd, education.education.institution, Columbia University
m.0gvw9gd, education.education.institution, Columbia University
m.02wplk5, education.education.degree, Bachelor of Arts
m.0g5bryn, education.education.institution, Columbia University
m.0svzrlh, education.education.institution, Columbia University
m.0w_f01l, education.honorary_degree.institution, University of South Africa
m.04hfqbj, education.education.institution, Columbia University
m.0svwggr, education.education.institution, Columbia University
m.02xj0vr, education.education.degree, Bachelor's degree
Energy development, business.industry.child_industry, Alternative energy
m.04dnxdg, education.education.institution, Columbia University
m.02wpcyh, education.education.institution, Columbia University
m.04lntgg, education.education.institution, Columbia University
m.0svyrmw, education.education.institution, Columbia University
m.0wkdhjh, education.education.institution, Columbia University
m.0zcydfg, education.education.institution, Columbia University
m.0pdj5tt, education.education.degree, Bachelor's degree
m.0hvbmqh, education.education.institution, Columbia University
m.0gtzgfm, education.education.institution, Columbia University
m.0svwwqr, education.education.institution, Columbia University
Energy development, base.descriptive_names.names.descriptive_name, m.010lbg7q
m.0whtnsv, education.education.institution, Columbia University
m.045xmhb, education.education.institution, Columbia University
m.0gggkxk, education.education.institution, Columbia University
m.0dw0svm, education.education.institution, Columbia University
m.04hqnxt, education.education.institution, Columbia University
m.0znxxlh, education.education.institution, Columbia University
Bachelorâs degree, common.image.appears_in_topic_gallery, Bachelor of Arts
m.0wkstqs, education.education.institution, Columbia University
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgbm
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgnv
m.02wn487, education.education.degree, Bachelor of Arts
m.04hftxd, education.education.institution, Columbia University
m.04hrfcs, education.education.institution, Columbia University
m.02wpnkh, education.education.institution, Columbia University
m.0w5lfhm, education.education.institution, Columbia University
Alternative energy, business.industry.parent_industry, Energy development
m.0gmhhvl, education.education.institution, Columbia University
m.0n106zf, education.education.degree, Bachelor's degree
m.0gmhhpf, education.education.institution, Columbia University
m.06wggdr, education.education.institution, Columbia University
m.0zcvkyq, education.education.institution, Columbia University
Energy development, business.industry.child_industry, Geothermal energy
m.0dw0sfm, education.education.institution, Columbia University
m.02wmrmy, education.education.institution, Columbia University
m.03p733r, education.education.degree, Bachelor of Arts
m.04kfsgr, education.education.institution, Columbia University
m.02wmszp, education.education.institution, Columbia University
Unirac, business.business_operation.industry, Energy development
m.04mjgdn, education.education.institution, Columbia University
m.0hgtgcy, education.education.institution, Columbia University
m.02wpcgd, education.education.institution, Columbia University
Bachelorâs degree, common.image.size, m.0kjks2
m.065mts8, education.education.degree, Bachelor of Arts
m.04ysvwp, education.education.institution, Columbia University
m.0zmvvmr, education.education.institution, Columbia University
m.0bmyjpv, education.education.institution, Columbia University
m.0dlqfyk, education.education.institution, Columbia University
m.0cpldfg, education.education.institution, Columbia University
m.0svsndt, education.education.institution, Columbia University
Harvesting lightning energy, business.industry.parent_industry, Energy development
m.0ggggcs, education.education.institution, Columbia University
m.09vjkxp, education.education.institution, Columbia University
m.04lnjgc, education.education.institution, Columbia University
m.0znmsgv, education.education.institution, Columbia University
m.06wgjkk, education.education.institution, Columbia University
m.0bmyhwc, education.education.institution, Columbia University
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgq2
m.05tbchk, education.education.institution, Columbia University
m.02wnmhd, education.education.institution, Columbia University
m.0dw0pvm, education.education.institution, Columbia University
m.04j4zvq, education.education.degree, Bachelor's degree
m.0dw0kyq, education.education.institution, Columbia University
m.0gmhfqm, education.education.institution, Columbia University
m.05yzmrk, education.education.institution, Columbia University
m.05yywqd, education.education.institution, Columbia University
m.0bmyljq, education.education.institution, Columbia University
m.0gmhfls, education.education.institution, Columbia University
Energy development, business.industry.child_industry, Space-based solar power
m.02wmqnf, education.education.institution, Columbia University
m.05yyrvk, education.education.institution, Columbia University
Bachelorâs degree, common.image.appears_in_topic_gallery, Bachelor's degree
Lviv Insulator Company, business.business_operation.industry, Energy development
m.05yzthb, education.education.institution, Columbia University
m.04kfsgr, education.education.degree, Bachelor of Arts
Bachelor's degree, common.topic.image, Bachelorâs degree
m.02wpkht, education.education.institution, Columbia University
Energy development, common.topic.notable_for, g.125734_1_
m.02wn48x, education.educational_institution.students_graduates, Columbia University
m.05yyxgc, education.education.institution, Columbia University
m.02wmykp, education.education.institution, Columbia University
m.02wmr1y, education.education.degree, Bachelor's degree
m.05yzcmh, education.education.institution, Columbia University
m.04fvfmw, education.education.institution, Columbia University
m.02wnm9h, education.education.degree, Bachelor of Arts
Moss Landing Power Plant p1270026, common.image.appears_in_topic_gallery, Energy development
Bachelor of Arts, education.educational_degree.honorary_degree_recipients, m.0w_f01l
m.04fntny, education.education.institution, Columbia University
m.0jzrqnd, education.education.institution, Columbia University
m.0cpkrvp, education.education.institution, Columbia University
m.04dnxdg, education.education.degree, Bachelor of Science
m.0hgtdkq, education.education.institution, Columbia University
m.077tj64, education.education.degree, Bachelor of Science
m.0cpfzhg, education.education.degree, Bachelor of Arts
Energy development, base.descriptive_names.names.descriptive_name, m.010lbf5k
m.0gggdyw, education.education.institution, Columbia University
m.0zcqnpb, education.education.institution, Columbia University
m.04hqqcm, education.education.institution, Columbia University
m.04lncgx, education.education.institution, Columbia University
m.0gmhfpw, education.education.institution, Columbia University
m.0jzrmxm, education.education.institution, Columbia University
m.02wnbdx, education.education.degree, Bachelor of Arts
m.0jzrklh, education.education.institution, Columbia University
m.04hfcjc, education.education.institution, Columbia University
Wind power, business.industry.parent_industry, Energy development
Energy development, common.topic.image, HDI & Electricity per capita
m.02wnx67, education.education.degree, Bachelor of Arts
Energy development, business.industry.child_industry, Hydrogen economy
m.02wpvvz, education.education.degree, Bachelor of Arts
m.0dwcl3f, education.education.institution, Columbia University
m.02wmvdb, education.education.degree, PhD
m.0pbygzm, education.education.institution, Columbia University
m.0znkq0s, education.education.institution, Columbia University
m.04hldyr, education.education.institution, Columbia University
m.02wpsmf, education.education.institution, Columbia University
m.0cpkntq, education.education.institution, Columbia University
m.0svxmfz, education.education.institution, Columbia University
m.02wnkcf, education.education.institution, Columbia University
m.04fmlm6, education.education.degree, Bachelor of Arts
Energy development, business.industry.child_industry, Wind power
m.02wnsrm, education.education.institution, Columbia University
m.02b88f6, education.education.degree, Bachelor's degree
m.0cpfzhg, education.education.institution, Columbia University
m.02wmx6n, education.education.degree, Bachelor of Arts
m.0zsbdht, education.education.institution, Columbia University
m.04fntnq, education.education.institution, Columbia University
m.02nqgmw, education.educational_institution.students_graduates, Columbia University
m.02wncph, education.education.degree, Bachelor's degree
m.04lncrc, education.education.institution, Columbia University
m.0fpkycb, education.education.institution, Columbia University
m.03ltmny, education.education.institution, Columbia University
m.05yzfhd, education.education.institution, Columbia University
m.03p72xw, education.education.degree, Bachelor of Arts
m.05yzkpc, education.education.institution, Columbia University
m.0dh55cs, education.education.institution, Columbia University
m.0gggktm, education.education.institution, Columbia University
m.0n0smdf, education.education.institution, Columbia University
m.0g5bryb, education.education.institution, Columbia University
m.05yyngz, education.education.institution, Columbia University
Energy development, business.industry.child_industry, Nuclear power debate
m.02wpfmz, education.education.institution, Columbia University
m.0j31vdq, event.public_speaker.speeches_or_presentations, Barack Obama
m.0gvwbsd, education.education.institution, Columbia University
HDI & Electricity per capita, common.image.appears_in_topic_gallery, Energy development
m.0p0kscf, education.education.institution, Columbia University
m.0gmhfmp, education.education.institution, Columbia University
m.05yykpv, education.education.institution, Columbia University
m.02wns95, education.education.degree, Bachelor of Arts
m.03btl9l, education.education.degree, Bachelor of Arts
m.0svzmfd, education.education.institution, Columbia University
m.0w5b8bc, education.education.institution, Columbia University
m.0jzrjkf, education.education.institution, Columbia University
m.02wnwcm, education.education.institution, Columbia University
m.02wnhdd, education.education.institution, Columbia University
m.02nqgmw, education.education.degree, Bachelor of Arts
m.04htnrg, education.education.institution, Columbia University
m.0n0sksz, education.education.institution, Columbia University
m.0gtzddf, education.education.institution, Columbia University
m.09vjjkz, education.education.institution, Columbia University
m.02wnhk8, education.education.degree, Bachelor's degree
Nuclear power debate, business.industry.parent_industry, Energy development
m.0jzrpjr, education.education.institution, Columbia University
m.05yywjd, education.education.institution, Columbia University
m.02wn8l_, education.education.degree, Bachelor of Arts
m.02wpc3q, education.education.degree, Bachelor of Arts
m.04lnyfs, education.education.institution, Columbia University
m.0bmyjyq, education.education.institution, Columbia University
m.03gknvh, education.education.institution, Columbia University
m.0tl4cwr, education.education.degree, Bachelor of Arts
m.0gggfvf, education.education.institution, Columbia University
m.04hldfh, education.education.institution, Columbia University
m.0ggggyg, education.education.institution, Columbia University
m.0w5jkdx, education.education.institution, Columbia University
m.0gtzdvf, education.education.institution, Columbia University
m.0gtzftr, education.education.institution, Columbia University
Barack Obama, people.person.education, m.02nqgmw
m.0_9qlts, education.honorary_degree.institution, Columbia University
Energy development, business.industry.companies, Unirac
m.04ynvhj, education.education.institution, Columbia University
m.0jzrkvh, education.education.institution, Columbia University
m.02wn73l, education.education.degree, Bachelor's degree
m.02wpqfh, education.education.institution, Columbia University
m.0svybjh, education.education.institution, Columbia University
m.02wpfhk, education.education.institution, Columbia University
m.0gmhfnb, education.education.institution, Columbia University
m.0svzfsg, education.education.institution, Columbia University
Shell Refueller, common.image.appears_in_topic_gallery, Energy development
m.0ggghpq, education.education.institution, Columbia University
m.04kfrcj, education.education.degree, Bachelor of Arts
m.0gtzfnf, education.education.institution, Columbia University
m.02wnzfh, education.education.institution, Columbia University
m.0fpkypr, education.education.institution, Columbia University
m.05yzhxm, education.education.institution, Columbia University
m.0hgvycj, education.education.institution, Columbia University
m.0zrjqyf, education.education.institution, Columbia University
m.0n0s8fd, education.education.institution, Columbia University
m.0hvxpqy, education.education.institution, Columbia University
m.02vb2cv, education.education.degree, Bachelor of Arts
m.09vjktd, education.education.institution, Columbia University
m.0whwcft, education.education.institution, Columbia University
Energy development, business.industry.child_industry, Distributed generation
m.0cpkqyf, education.education.institution, Columbia University
m.0n15zmh, education.education.institution, Columbia University
m.0cpldlq, education.education.institution, Columbia University
Energy development, business.industry.companies, Lviv Insulator Company
m.0wlwckk, education.education.institution, Columbia University
m.04hmf3h, education.education.institution, Columbia University
m.05yzdms, education.education.institution, Columbia University
Energy development, business.industry.child_industry, Solar thermal energy
m.02wnsnt, education.education.institution, Columbia University
m.0cpkslt, education.education.institution, Columbia University
m.0j31vdq, event.speech_or_presentation.speech_topic, Energy development
m.0wlqbry, education.education.institution, Columbia University
m.02wmvfg, education.education.institution, Columbia University
m.0hzhjkd, education.education.institution, Columbia University
m.0kc15jh, education.education.institution, Columbia University
m.04fmlmf, education.education.institution, Columbia University
m.0gtzfjr, education.education.institution, Columbia University
m.0hgtdjn, education.education.institution, Columbia University
Energy development, business.industry.child_industry, Harvesting lightning energy
m.02wpqyq, education.education.degree, Bachelor of Arts
m.07ltrbf, education.education.institution, Columbia University
m.0fpkzzm, education.education.institution, Columbia University
m.09vjczp, education.education.institution, Columbia University
m.0fpkzrf, education.education.institution, Columbia University
m.0czvwch, education.education.institution, Columbia University
m.04lnwqh, education.education.institution, Columbia University
m.02wk7lq, education.education.degree, Bachelor of Arts
m.04hwlvq, education.education.institution, Columbia University
m.02wp46r, education.education.degree, Bachelor of Arts
Bachelor's degree, common.topic.notable_types, Degree
Energy development, event.speech_topic.speeches_or_presentations_on_this_topic, m.0j31vdq
m.0zrjkbl, education.education.institution, Columbia University
Hydrogen economy, business.industry.parent_industry, Energy development
m.0jzrmsq, education.education.institution, Columbia University
m.0k3fjwr, education.education.degree, Bachelor of Arts
m.0cplbnt, education.education.institution, Columbia University
m.04ysvkp, education.education.institution, Columbia University
m.02wmzhp, education.education.institution, Columbia University
m.0dfgzrv, education.education.institution, Columbia University
m.0cplfgp, education.education.institution, Columbia University
m.0dw0scf, education.education.institution, Columbia University
m.09vjdkg, education.education.institution, Columbia University
m.02wpmlc, education.education.degree, Bachelor of Arts
m.02wmswp, education.education.institution, Columbia University
m.0gvyccm, education.education.institution, Columbia University
Energy development, common.topic.article, m.02mg6q
m.05yylxr, education.education.institution, Columbia University
m.02wpxr1, education.education.degree, Bachelor of Arts
Energy development, common.topic.notable_types, Industry
m.05yzgqs, education.education.institution, Columbia University
m.0svy_ll, education.education.institution, Columbia University
m.0hgvzls, education.education.institution, Columbia University
m.05yyvvy, education.education.institution, Columbia University
m.0mzvnwc, education.education.institution, Columbia University
m.0dw0s8l, education.education.institution, Columbia University
m.0w5mqnm, education.education.institution, Columbia University
Distributed generation, business.industry.parent_industry, Energy development
m.02wmqjd, education.education.institution, Columbia University
m.03p71_n, education.education.degree, Bachelor's degree
Energy development, business.industry.child_industry, Solar energy
m.0svxktq, education.education.institution, Columbia University
m.02wptf9, education.education.degree, Bachelor of Arts
m.02wnfk7, education.education.degree, Bachelor of Arts
m.02wpfqh, education.education.institution, Columbia University
m.02wnkym, education.education.institution, Columbia University
Solar energy, business.industry.parent_industry, Energy development
m.04hfjpv, education.education.institution, Columbia University
m.04mbkkd, education.education.institution, Columbia University
m.04yswpn, education.education.institution, Columbia University
m.09vjhqd, education.education.institution, Columbia University
m.0jzrmbr, education.education.institution, Columbia University
m.02wmrcp, education.education.institution, Columbia University
Energy development, common.topic.image, Shell Refueller
m.0ghcgdr, education.education.institution, Columbia University
m.0zdxnlt, education.education.institution, Columbia University
m.02wpfkb, education.education.institution, Columbia University
m.03q55tr, education.education.degree, Bachelor of Arts
m.0gmhhdf, education.education.institution, Columbia University
m.0_9qlts, education.honorary_degree.recipient, James Marston Fitch
m.0gtzqqp, education.education.institution, Columbia University
m.0pcmkrx, education.education.institution, Columbia University
m.04hfhnt, education.education.institution, Columbia University
m.0hgtdrj, education.education.institution, Columbia University
m.07ltmvz, education.education.institution, Columbia University
m.04hgrtj, education.education.institution, Columbia University
m.07yh05p, education.education.degree, Bachelor of Arts
m.02wmwnk, education.education.institution, Columbia University
m.0mzvgqt, education.education.institution, Columbia University
m.04lnbbb, education.education.institution, Columbia University
m.0hnzsnt, education.education.institution, Columbia University
m.09vjgkd, education.education.institution, Columbia University
m.05yzvwn, education.education.institution, Columbia University
m.0bd3csm, education.education.institution, Columbia University
m.0svstmp, education.education.institution, Columbia University
m.04hfpxj, education.education.institution, Columbia University
m.04dxhyk, education.education.institution, Columbia University
m.02wpgxg, education.education.degree, Bachelor of Arts
m.02wn9xz, education.education.degree, Bachelor's degree
m.02wmyz1, education.education.degree, Bachelor of Arts
m.0hnmwqj, education.education.institution, Columbia University
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgn2
m.04mgssb, education.education.institution, Columbia University
m.0zwwlfh, education.education.institution, Columbia University
m.04fntnq, education.education.degree, Bachelor of Arts
Energy development, base.schemastaging.context_name.pronunciation, m.013154yd
m.04lrfzl, education.education.institution, Columbia University
m.07skgzf, education.education.institution, Columbia University
m.0dlqjgm, education.education.institution, Columbia University
m.0g5bsyc, education.education.institution, Columbia University
m.0svwtrm, education.education.institution, Columbia University
m.0fpky8f, education.education.institution, Columbia University
m.05yzdgd, education.education.institution, Columbia University
m.0btpcpb, education.education.institution, Columbia University
m.04hfjzl, education.education.institution, Columbia University
m.0hgtgmr, education.education.institution, Columbia University

Answer: Columbia University