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: who is the conference sponsor of the playmakers? 
Knowledge Triplets: PLS Inc, book.periodical_publisher.periodicals_published, m.0lqzp53
m.0lqyp3h, book.periodical_publisher_period.publisher, PLS Inc
PLS Inc, business.business_operation.industry, Petroleum industry
docFinder, computer.software_license.versions, PLS Inc
m.0lr0d_y, book.periodical_publisher_period.publisher, PLS Inc
PLS Inc, business.business_operation.industry, Software development
Dealmakers Expo, conferences.conference_series.sponsoring_organization, PLS Inc
PLS Inc, book.periodical_publisher.periodicals_published, m.0lr0l9m
oil and gas company, organization.organization_type.organizations_of_this_type, PLS Inc
MarketMakers, conferences.conference_series.sponsoring_organization, PLS Inc
Publishing, business.industry.companies, PLS Inc
m.0lr0jwm, book.periodical_publisher_period.publisher, PLS Inc
PLS Inc, computer.software_developer.software, docFinder
m.0lqs_vk, book.periodical_publisher_period.publisher, PLS Inc
docFinder, computer.software.developer, PLS Inc
M&A Database, computer.software.license, PLS Inc
PLS Inc, organization.organization.organization_type, Brokerage firm
PLS Inc, book.periodical_publisher.periodicals_published, m.0lqy9cx
Ronyld Wise, organization.organization_founder.organizations_founded, PLS Inc
PLS Inc, book.periodical_publisher.periodicals_published, m.0lqxcds
PLS Inc, conferences.conference_sponsor.conferences, Dealmakers Expo
PLS Inc, business.business_operation.industry, Business-to-business
PLS Inc, organization.organization.organization_type, Expo
PLS Inc, conferences.conference_sponsor.conferences, Playmakers
Brokerage firm, organization.organization_type.organizations_of_this_type, PLS Inc
PLS Inc, book.periodical_publisher.periodicals_published, m.0lr0d_y
m.0lqy9cx, book.periodical_publisher_period.publisher, PLS Inc
docFinder, computer.software.license, PLS Inc
PLS Inc, business.business_operation.industry, Brokerage firm
m.0lqzp53, book.periodical_publisher_period.publisher, PLS Inc
Playmakers, conferences.conference_series.sponsoring_organization, PLS Inc
PLS Inc, book.periodical_publisher.periodicals_published, m.0lqs_vk
PLS Inc, organization.organization.slogan, "...first in news, analysis and business opportunities."
Playmakers, time.recurring_event.date_of_final_occurance, 2009-12-02
PLS Inc, book.periodical_publisher.periodicals_published, m.0lr07qh
PLS Inc, book.periodical_publisher.periodicals_published, m.0lqyp3h
PLS Inc, book.periodical_publisher.periodicals_published, m.0lr0j36
exploration and production, conferences.conference_subject.series_of_conferences_about_this, Playmakers
Petroleum industry, business.industry.companies, PLS Inc
PLS Inc, book.periodical_publisher.periodicals_published, m.0lqz3fr
m.0lqxcds, book.periodical_publisher_period.publisher, PLS Inc
PLS Inc, organization.organization.organization_type, oil and gas company
Software development, business.industry.companies, PLS Inc
PLS Inc, organization.organization.headquarters, m.0l2ngkl
PLS Inc, book.periodical_publisher.periodicals_published, m.0lr0jwm
PLS Inc, conferences.conference_sponsor.conferences, MarketMakers
Expo, organization.organization_type.organizations_of_this_type, PLS Inc
PLS Inc, organization.organization.founders, Ronyld Wise
PLS Inc, book.periodical_publisher.periodicals_published, m.0lq_ssr
m.0lqt057, dataworld.gardening_hint.replaced_by, PLS Inc
PLS Inc, business.business_operation.industry, Agile software development
Agile software development, business.industry.companies, PLS Inc
m.0lr0l9m, book.periodical_publisher_period.publisher, PLS Inc
m.0l2nb7c, dataworld.gardening_hint.replaced_by, PLS Inc
PLS Inc, business.business_operation.industry, Publishing
Brokerage firm, business.industry.companies, PLS Inc
Business-to-business, business.industry.companies, PLS Inc
m.0lr0j36, book.periodical_publisher_period.publisher, PLS Inc
m.0lqz3fr, book.periodical_publisher_period.publisher, PLS Inc
m.0lr07qh, book.periodical_publisher_period.publisher, PLS Inc
m.0lq_ssr, book.periodical_publisher_period.publisher, PLS Inc
PLS Inc, computer.software_license.version_of, docFinder
PLS Inc, organization.organization.date_founded, 1987
Playmakers, conferences.conference_series.subject, exploration and production

Answer: PLS Inc