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: What kind of education did the public speaker who spoke about energy development have? 
Knowledge Triplets: m.02wmyz1, education.education.degree, Bachelor of Arts
David E. McGiffert, people.person.education, m.0dw0r8p
Energy industry, common.topic.notable_types, Industry
m.0zfy0hc, education.education.degree, PhD
m.0znct2z, education.education.degree, PhD
m.06wgj2b, education.education.degree, PhD
m.02nqgmw, education.educational_institution.students_graduates, Columbia University
m.02wp1pg, education.education.degree, PhD
Energy development, business.industry.child_industry, Alternative energy
m.02wmr1y, education.education.degree, Bachelor's degree
m.010ccdcy, education.education.degree, PhD
m.02wncb4, education.education.degree, Master of Arts
m.04fmlm6, education.education.degree, Bachelor of Arts
m.0nbyhy_, education.education.institution, St. Francis of Assisi Catholic School
m.0646ksv, education.education.degree, PhD
m.02wnnlr, education.education.degree, PhD
m.0zwl4mq, education.education.degree, PhD
m.02wn7y8, education.education.degree, Master of Science
m.02_b3m5, education.education.degree, Bachelor of Arts
m.0zcsrbw, education.education.degree, PhD
m.0h9bbt4, education.education.degree, PhD
m.0102nv58, education.education.degree, PhD
m.02wpq27, education.education.degree, PhD
m.010602p1, education.education.degree, PhD
Barack Obama, people.person.education, m.0nbyhqc
m.09vj4nt, education.education.degree, PhD
Jeanne H Ballantine, people.person.education, m.0_kwmww
m.0zffs24, education.education.degree, PhD
m.0zffzjt, education.education.degree, PhD
m.0zcydfg, education.education.degree, PhD
m.04h9z99, education.education.degree, MBA
Barack Obama, people.person.education, m.02nqgmw
Stephen J. Solarz, people.person.education, m.02wns24
m.0770dww, education.education.degree, PhD
m.0znyc1q, education.education.degree, PhD
Paul S. Appelbaum, people.person.education, m.04hgkq7
m.04m6010, education.education.degree, Master of Public Administration
m.0znyc43, education.education.degree, PhD
m.012kzz2y, education.education.degree, PhD
m.07yr073, education.education.degree, PhD
m.04htm02, education.education.degree, PhD
m.010f3hn5, education.education.degree, PhD
Energy development, business.industry.child_industry, Solar thermal energy
m.010lc0hd, education.education.degree, PhD
m.07lt3g0, education.education.degree, PhD
m.0zmvbly, education.education.degree, PhD
Energy development, business.industry.companies, Lviv Insulator Company
m.02wk7lq, education.education.degree, Bachelor of Arts
m.010f_r17, education.education.degree, Master of Arts
m.02wng19, education.education.degree, PhD
m.02wn9cg, education.education.degree, PhD
m.05y_751, education.education.degree, Master of Arts
m.0101mb9t, education.education.degree, PhD
m.010lb0p3, education.education.degree, PhD
m.02wprg6, education.education.degree, Bachelor of Science
m.04m173g, education.education.degree, Master of Science
m.0104b0m4, education.education.degree, PhD
m.02wns95, education.education.degree, Bachelor of Arts
m.049y429, education.education.degree, Bachelor of Arts
m.0fq7ny5, education.education.degree, Master of Arts
m.0102z1m3, education.education.degree, PhD
Energy development, common.topic.image, Shell Refueller
Barack Obama, education.education.student, m.02nqgn2
m.0107b004, education.education.degree, PhD
Geothermal energy, business.industry.parent_industry, Energy development
m.02wpqyq, education.education.degree, Bachelor of Arts
m.07b8723, education.education.degree, Bachelor of Arts
m.010btg46, education.education.degree, PhD
m.0770dww, education.education.specialization, Public law
m.05nwmf7, education.education.degree, Master of Arts
m.03p7309, education.education.degree, PhD
m.048zs9t, education.education.degree, Master of Science
Space-based solar power, business.industry.parent_industry, Energy development
m.02wn0hh, education.education.degree, PhD
m.010fytd5, education.education.degree, PhD
m.012l2923, education.education.degree, Master of Arts
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgn2
m.0fq7tzl, education.education.degree, Master of Science
m.02nqgn2, education.education.institution, Harvard Law School
m.09scccv, education.education.degree, PhD
David Wechsler, people.person.education, m.02wpg20
m.0770k06, education.education.degree, PhD
Energy development, business.industry.child_industry, Solar energy
m.0znk42f, education.education.degree, PhD
m.0zs7qzh, education.education.degree, PhD
m.0zwjdlc, education.education.degree, PhD
m.010f357_, education.education.degree, Bachelor of Arts
m.02wn0yk, education.education.degree, Master of Arts
m.0gmhhcz, education.education.degree, Bachelor of Arts
m.07y4fb7, education.education.degree, PhD
m.02wnfk7, education.education.degree, Bachelor of Arts
Education reform, event.speech_topic.speeches_or_presentations_on_this_topic, m.0j31vdq
m.07ylhcq, education.education.degree, Master of Arts
m.02wp408, education.education.degree, Master of Arts
m.012r349r, education.education.degree, PhD
m.02wp46r, education.education.degree, Bachelor of Arts
m.02wns4z, education.education.degree, PhD
m.04lnlzb, education.education.degree, PhD
m.0hhy0bq, education.education.degree, PhD
m.0gmhhvl, education.education.degree, MBA
m.0zhwzjt, education.education.degree, PhD
m.010fw3c8, education.education.degree, PhD
m.010bcj0y, education.education.degree, PhD
m.010ft1f7, education.education.degree, PhD
m.02wndp6, education.education.degree, PhD
m.0108ft1v, education.education.degree, PhD
m.0zg0nkj, education.education.degree, PhD
Shell Refueller, common.image.appears_in_topic_gallery, Energy development
m.04kfrc4, education.education.degree, Master of Arts
m.0hhy0hy, education.education.degree, PhD
m.02nstx5, education.education.degree, MBA
m.04fmlls, education.education.degree, MBA
Alternative energy, business.industry.companies, Energy Conversion Devices
m.02wmvdb, education.education.degree, PhD
m.04dnxdg, education.education.degree, Bachelor of Science
m.05yykqz, education.education.degree, PhD
m.02wplcg, education.education.degree, PhD
m.0zmts4w, education.education.degree, PhD
m.04hwbkq, education.education.degree, Master of Arts
m.0w5hgz9, education.education.degree, PhD
Solar thermal energy, business.industry.parent_industry, Energy development
m.05yyqdc, education.education.degree, PhD
m.02_b3mj, education.education.degree, Bachelor of Arts
Energy development, common.topic.image, Moss Landing Power Plant p1270026
m.0kc15jh, education.education.degree, Master of Science
m.0102p35q, education.education.degree, PhD
m.03p730y, education.education.degree, PhD
m.02wp8vw, education.education.degree, PhD
m.04ynvhj, education.education.degree, Master of Science
m.02wnrnk, education.education.degree, PhD
m.03l67h4, education.education.degree, PhD
m.0zcyd3q, education.education.degree, PhD
m.0zmtr25, education.education.degree, PhD
m.0btpbgm, education.education.degree, PhD
m.04fntnq, education.education.degree, Bachelor of Arts
m.05yzqcs, education.education.degree, PhD
m.0105p0tb, education.education.degree, PhD
m.09vjd3y, education.education.degree, Master of Arts
m.01013197, education.education.degree, PhD
m.012m2757, education.education.degree, PhD
m.02wpdkr, education.education.degree, Bachelor of Science
m.012kzz2q, education.education.degree, Master of Arts
m.0_r8w17, education.education.degree, Bachelor of Science
m.01010kw3, education.education.degree, PhD
m.0svwd68, education.education.degree, PhD
m.02wpgxg, education.education.degree, Bachelor of Arts
m.0z567rm, education.education.degree, Bachelor of Science
m.0ghcgdr, education.education.degree, Master of Science
m.02wpnb2, education.education.degree, PhD
m.04hg9p6, education.education.degree, PhD
m.046bl1c, education.education.degree, MBA
m.04yt0j8, education.education.degree, PhD
Shraga Feivel Paretzky, people.person.education, m.0svwtrm
m.0mzvftb, education.education.degree, PhD
m.0j31vdq, event.speech_or_presentation.speech_topic, Energy development
m.03p72rq, education.education.degree, PhD
m.02wp014, education.education.degree, PhD
Energy development, business.industry.companies, Unirac
m.0646kqv, education.education.degree, PhD
Barack Obama, people.person.education, m.0nbyj44
m.02wnv4t, education.education.degree, PhD
m.0_75dy5, education.education.degree, PhD
m.0zfdwqq, education.education.degree, PhD
m.04h_2vf, education.education.degree, MBA
m.0dlqfyk, education.education.degree, PhD
m.0104lf16, education.education.degree, PhD
m.0zfwj23, education.education.degree, PhD
m.0cpfzhg, education.education.degree, Bachelor of Arts
m.0jmw0pr, education.education.degree, PhD
m.0102zhrg, education.education.degree, PhD
Energy development, base.schemastaging.context_name.pronunciation, m.013154yd
m.02wn6dv, education.education.degree, PhD
Energy development, business.industry.child_industry, Distributed generation
m.01010m30, education.education.degree, PhD
m.01010qvz, education.education.degree, PhD
m.0104tbnn, education.education.degree, PhD
m.02nqgp6, education.education.institution, Punahou School
m.0fq99yt, education.education.degree, Master of Science
m.08cyyp0, education.education.degree, PhD
m.0103thgn, education.education.degree, PhD
Energy development, business.industry.child_industry, Wind power
m.0fq7sdq, education.education.degree, Bachelor of Arts
m.0102yq2c, education.education.degree, PhD
m.0zmwknm, education.education.degree, PhD
m.04kfsgr, education.education.degree, Bachelor of Arts
m.0zndd42, education.education.degree, PhD
m.0106yqh4, education.education.degree, PhD
m.0103rbxw, education.education.degree, PhD
m.06wgnkd, education.education.degree, Master's Degree
m.02wpgmn, education.education.degree, Bachelor of Science
m.0646n93, education.education.degree, Master of Arts
m.02wplk5, education.education.degree, Bachelor of Arts
Energy development, common.topic.article, m.02mg6q
m.02kq0r6, education.education.degree, PhD
m.05t6p68, education.education.degree, PhD
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgq2
m.0667zn8, education.education.degree, Master of Arts
m.0fq7tnr, education.education.degree, Master of Arts
Herbert Hutner, people.person.education, m.0_kwnl2
m.02wp01j, education.education.degree, PhD
Energy development, base.descriptive_names.names.descriptive_name, m.010lbfff
Alternative energy, common.topic.article, m.03bwzg0
m.09vjdy8, education.education.degree, PhD
Hydrogen economy, business.industry.parent_industry, Energy development
m.04fkydz, education.education.degree, Bachelor of Arts
HDI & Electricity per capita, common.image.appears_in_topic_gallery, Energy development
m.02wpmly, education.education.degree, Bachelor of Fine Arts
m.02wn8r0, education.education.degree, PhD
Edward Seidensticker, people.person.education, m.05yyqwj
m.02wpf4p, education.education.degree, PhD
m.02_xq9l, education.education.degree, Master of Science
m.0gltrct, education.education.degree, PhD
m.0fq7ydw, education.education.degree, Bachelor of Arts
m.02wnwwg, education.education.degree, PhD
m.01060338, education.education.degree, PhD
m.0h41864, education.education.degree, PhD
m.02_3svx, education.education.degree, Bachelor of Science
Harvesting lightning energy, business.industry.parent_industry, Energy development
m.010cw8g1, education.education.degree, PhD
m.09vjn2z, education.education.degree, PhD
Energy development, base.descriptive_names.names.descriptive_name, m.010lbf5k
Barack Obama, education.education.student, m.0nbyhy_
m.0nd8416, education.education.degree, Bachelor of Arts
m.02wp699, education.education.degree, PhD
Barack Obama, education.education.student, m.02nqgp6
m.0gb08s2, education.education.degree, Bachelor of Science
m.0_9hgfy, education.education.degree, PhD
Energy industry, business.industry.child_industry, Wind power
m.0nbm3_9, education.education.degree, MBA
m.01048n_2, education.education.degree, PhD
m.02wncfq, education.education.degree, PhD
m.0ztl4gr, education.education.specialization, High Energy Physics
m.0fq9f38, education.education.degree, Bachelor of Science
m.03p735g, education.education.degree, Bachelor of Science
Energy development, business.industry.child_industry, Space-based solar power
m.0zczyq6, education.education.degree, PhD
m.0ztl4gr, education.education.degree, PhD
m.02wnffw, education.education.degree, PhD
m.02wn6b3, education.education.degree, Master of Arts
m.0109wb8j, education.education.degree, PhD
m.04hpq6z, education.education.degree, PhD
m.09sc7x5, education.education.degree, PhD
m.02wmqvq, education.education.degree, Master of Arts
m.077tj64, education.education.minor, Philosophy
m.0znmjkd, education.education.degree, PhD
m.0dh5v81, education.education.degree, PhD
m.03p72nr, education.education.degree, Master's Degree
m.077tj64, education.education.degree, Bachelor of Science
Energy development, base.descriptive_names.names.descriptive_name, m.010lbf4j
m.03p724b, education.education.degree, PhD
m.0fq9cr5, education.education.degree, Bachelor of Arts
Nuclear power debate, business.industry.parent_industry, Energy development
m.0zfg5dc, education.education.degree, PhD
m.04fmll_, education.education.degree, Master of Arts
m.02wnyh3, education.education.degree, Doctorate
m.02wnp6j, education.education.degree, PhD
m.02wngs2, education.education.degree, MBA
m.03p71x1, education.education.degree, PhD
Elaine Sterne Carrington, people.person.education, m.0svyrmw
m.0zsbdht, education.education.degree, PhD
Energy development, event.speech_topic.speeches_or_presentations_on_this_topic, m.0j31vdq
Energy industry, business.industry.child_industry, Solar energy
m.0zcvkyq, education.education.degree, PhD
m.07zqq_8, education.education.degree, Master of Fine Arts
m.04fsb35, education.education.degree, PhD
m.01021wg9, education.education.degree, PhD
Energy development, business.industry.child_industry, Hydrogen economy
m.0101m23f, education.education.degree, PhD
m.0nbyj44, education.education.institution, State Elementary School Menteng 01
Charles L. Weltner, people.person.education, m.02wprbr
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgnv
m.01016t36, education.education.degree, Master of Fine Arts
m.02wph8y, education.education.degree, Master of Arts
m.02_6r81, education.education.degree, Master of Science
m.010ldpxq, education.education.degree, PhD
m.0gt_09t, education.education.degree, Bachelor of Arts
m.07yh05p, education.education.degree, Bachelor of Arts
m.012r33x8, education.education.degree, PhD
m.010bctl0, education.education.degree, PhD
Energy development, business.industry.child_industry, Nuclear power debate
m.04yt1bb, education.education.degree, PhD
Jeff Kwatinetz, people.person.education, m.0gy38kn
m.02wnm9h, education.education.degree, Bachelor of Arts
m.010fys45, education.education.degree, PhD
m.02wp7k1, education.education.degree, PhD
m.03p7391, education.education.degree, PhD
m.0zfwfvn, education.education.degree, PhD
m.0dlrjd2, education.education.degree, PhD
m.02wptf9, education.education.degree, Bachelor of Arts
m.02wprfy, education.education.degree, PhD
m.01033_3y, education.education.degree, PhD
m.07yy3y5, education.education.degree, Bachelor of Arts
m.0667yvf, education.education.degree, PhD
m.010107l3, education.education.degree, PhD
m.02kq1hh, education.education.degree, PhD
m.02wmz1j, education.education.degree, PhD
m.012r349j, education.education.degree, Master of Arts
m.02wn487, education.education.degree, Bachelor of Arts
m.02wpc3q, education.education.degree, Bachelor of Arts
m.010bcktv, education.education.degree, PhD
m.05yyhd4, education.education.degree, PhD
m.07n73zg, education.education.degree, Bachelor of Science
m.02wpp9w, education.education.degree, Master of Arts
m.07c02s0, education.education.degree, Bachelor of Arts
m.0j31vdq, event.speech_or_presentation.speech_topic, Education reform
Energy development, common.topic.notable_for, g.125734_1_
Barack Obama, event.public_speaker.speeches_or_presentations, m.0j31vdq
m.05yyj7m, education.education.degree, Bachelor of Arts
m.065mts8, education.education.degree, Bachelor of Arts
m.02_7jm_, education.education.degree, Master of Science
m.02wpbs8, education.education.degree, PhD
m.03p72rk, education.education.degree, PhD
Energy industry, business.industry.child_industry, Geothermal energy
m.0bmywhz, education.education.degree, PhD
m.010f3rt9, education.education.degree, Master of Arts
m.02nqgpk, education.education.institution, Occidental College
m.04q156x, education.education.degree, PhD
Edward L. Greenstein, people.person.education, m.0zhwzjt
m.02wnz81, education.education.degree, PhD
m.0104nd5m, education.education.degree, PhD
m.02sg7m5, education.education.degree, MBA
m.03p7333, education.education.degree, MBA
m.010f14qv, education.education.degree, PhD
m.012l19w1, education.education.degree, PhD
Wind power, business.industry.parent_industry, Energy development
m.0n1jyyd, education.education.degree, PhD
m.010b29v6, education.education.degree, PhD
m.03p734c, education.education.degree, PhD
m.0nbyhqc, education.educational_institution.students_graduates, Noelani Elementary School
m.03p72h3, education.education.degree, PhD
m.04dxhyk, education.education.degree, MBA
Solar energy, business.industry.parent_industry, Energy development
m.0bmyzt8, education.education.degree, Bachelor of Arts
m.02wn857, education.education.degree, PhD
m.02sr44q, education.education.degree, MBA
Energy development, common.topic.notable_types, Industry
m.04fs8jy, education.education.degree, PhD
m.0zs4rl5, education.education.degree, PhD
m.01089thq, education.education.degree, PhD
m.02wpm73, education.education.degree, PhD
m.04jqmf_, education.education.degree, Master of Science
Lviv Insulator Company, business.business_operation.industry, Energy development
m.03n8ghx, education.education.degree, MBA
Energy industry, business.industry.child_industry, g.122dlgkc
m.0svwtrm, education.education.student, Shraga Feivel Paretzky
m.0j31vdq, event.public_speaker.speeches_or_presentations, Barack Obama
Hydrogen economy, education.field_of_study.journals_in_this_discipline, International Journal of Hydrogen Energy
m.0105s1ly, education.education.degree, PhD
m.0zrjqyf, education.education.degree, PhD
m.065mtsh, education.education.degree, Master of Science
John Rousmaniere, people.person.education, m.0bmyhkw
Distributed generation, business.industry.parent_industry, Energy development
m.0102mkqy, education.education.degree, PhD
Alternative energy, business.industry.parent_industry, Energy development
m.0zt1wks, education.education.degree, PhD
Energy development, base.descriptive_names.names.descriptive_name, m.010lbg7q
m.010btxrq, education.education.degree, PhD
m.0106pps6, education.education.degree, PhD
m.0zhz688, education.education.degree, PhD
m.04hf9m0, education.education.degree, Bachelor of Arts
m.04fv969, education.education.degree, PhD
m.010gj5vn, education.education.degree, PhD
m.0zrjkbl, education.education.degree, PhD
m.010lb619, education.education.degree, PhD
m.0zfygrt, education.education.degree, PhD
m.0w5fngp, education.education.degree, PhD
m.010g7684, education.education.degree, PhD
Energy development, event.speech_topic.speeches_or_presentations_on_this_topic, m.0j31vdq
m.0fq7yd7, education.education.degree, Bachelor of Arts
m.0n0rdyh, education.education.degree, PhD
m.010bc9j4, education.education.degree, PhD
m.0zrk2hr, education.education.degree, PhD
m.0101hzd0, education.education.degree, PhD
m.0101ht68, education.education.degree, PhD
Energy development, business.industry.child_industry, Geothermal energy
m.0z_86m8, education.education.degree, PhD
m.010gjndl, education.education.degree, Master of Arts
m.02nqgmw, education.education.degree, Bachelor of Arts
Energy development, base.descriptive_names.names.descriptive_name, m.010lbgbm
James Daichendt, people.person.education, m.0ybkkhm
m.0101p0m5, education.education.degree, Master of Arts
Unirac, business.business_operation.industry, Energy development
m.01010brs, education.education.degree, PhD
m.03q55tr, education.education.degree, Bachelor of Arts
m.02kq08w, education.education.degree, PhD
m.0zmppr4, education.education.degree, Bachelor of Arts
m.04kfqw7, education.education.degree, Bachelor of Arts
m.010142pr, education.education.degree, PhD
m.0zffgd4, education.education.degree, PhD
Energy development, business.industry.child_industry, Harvesting lightning energy
m.0107xlch, education.education.degree, PhD
m.02wpmlc, education.education.degree, Bachelor of Arts
m.0hhy147, education.education.degree, PhD
m.05yys96, education.education.degree, PhD
m.0bmyhmp, education.education.degree, Master of Arts
m.010c49ft, education.education.degree, PhD
m.07n73z7, education.education.degree, Master of Engineering
m.0zmjm88, education.education.degree, PhD
Energy development, common.topic.image, HDI & Electricity per capita
m.0n0lytq, education.education.degree, PhD
m.0101n1lq, education.education.degree, PhD
m.01064t9y, education.education.degree, PhD
m.04ysvqq, education.education.degree, PhD
m.0zwvsrk, education.education.degree, PhD
Alternative energy, common.topic.notable_types, Industry
m.02wnx67, education.education.degree, Bachelor of Arts
Alternative energy, business.industry.companies, Ormat Industries
m.02wp6g8, education.education.degree, MBA
m.09j5hf3, education.education.degree, Bachelor of Arts
m.0znkq0s, education.education.degree, PhD
Barack Obama, people.person.education, m.02nqgpk
m.06wglt7, education.education.degree, PhD
m.03p722g, education.education.degree, Bachelor of Science
m.04lpfwh, education.education.degree, Master of Fine Arts
m.049y420, education.education.degree, Master of Arts
m.012r33x1, education.education.degree, Master of Public Health
m.02_2l47, education.education.degree, Master of Science
m.01295235, education.education.degree, PhD
m.0770n47, education.education.degree, PhD
m.02wn328, education.education.degree, PhD
m.02wpxr1, education.education.degree, Bachelor of Arts
John Corigliano, people.person.education, m.02wpgxg
m.02wmx5q, education.education.degree, PhD

Answer: Harvard Law School
Columbia University
Noelani Elementary School
State Elementary School Menteng 01
Punahou School
Occidental College
St. Francis of Assisi Catholic School