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 type of government system does the country have where "Mutant Planet: New Zealand" was filmed? 
Knowledge Triplets: TV Episode, type.type.expected_by, Next episode
New Zealand, common.image.appears_in_topic_gallery, Mutant Planet
New Zealand, common.image.size, m.0jsdgc
TV Episode, type.type.properties, Filming locations
TV Episode, type.type.expected_by, Followed By
TV Episode, common.topic.article, m.07jpv__
TV Episode, freebase.type_hints.included_types, Topic
TV Episode, type.type.expected_by, Episode
TV Episode, type.type.expected_by, tv_next_episode
TV Episode, type.type.properties, Producers
New Zealand, common.image.appears_in_topic_gallery, Mutant Planet: New Zealand
TV Episode, type.type.properties, TheTVDB.com ID
Mutant Planet: New Zealand, common.topic.article, m.0jyrfvd
TV Episode, type.type.expected_by, episode
TV Episode, type.type.expected_by, TV Episode
TV Episode, type.type.properties, Production number
TV Episode, type.type.properties, TVRage Episode ID
TV Episode, type.type.expected_by, TV Episodes Directed
TV Episode, type.type.expected_by, Final TV appearance
TV Episode, type.type.expected_by, Episodes
m.0jyrfvd, common.document.content, m.0jyrfv3
TV Episode, type.type.properties, Season
TV Episode, type.type.expected_by, TV episodes filmed here
TV Episode, type.type.expected_by, Previous episode
TV Episode, freebase.type_profile.strict_included_types, Topic
Mutant Planet, tv.tv_program.episodes, Mutant Planet: New Zealand
TV Episode, type.type.expected_by, previous_episode
TV Episode, type.type.expected_by, EpisodeName
TV Episode, type.type.expected_by, References
TV Episode, type.type.expected_by, TV episodes
TV Episode, type.type.properties, Previous episode
TV Episode, type.type.properties, Other crew
TV Episode, type.type.properties, Songs
TV Episode, type.type.expected_by, TV Episodes Written
TV Episode, freebase.type_profile.kind, Definition
TV Episode, type.type.properties, Series
TV Episode, type.type.expected_by, Last episode
TV Episode, type.type.expected_by, Preceded By
TV Episode, type.type.properties, Segments
TV Episode, freebase.type_profile.published, Published
Mutant Planet: New Zealand, common.topic.notable_for, g.1yl5p4wj6
Mutant Planet, common.topic.image, New Zealand
TV Episode, type.type.properties, Season number
TV Episode, freebase.type_profile.strict_included_types, Abstract
TV Episode, type.type.properties, Original Broadcast Rating
Topic, freebase.type_profile.published, Published
TV Episode, type.type.expected_by, TV Episodes
TV Episode, type.type.properties, Writer
TV Episode, type.type.domain, TV
Mutant Planet: New Zealand, common.topic.image, New Zealand
TV Episode, type.type.properties, Performances
TV Episode, type.type.expected_by, Final TV Appearance
TV Episode, type.type.properties, Part of multipart episode
TV Episode, type.type.properties, Original air date
TV, type.domain.types, TV Episode
TV Episode, type.type.properties, Next episode
TV Episode, type.type.expected_by, tv_episodes
TV Episode, type.type.properties, Subjects
TV Episode, type.type.properties, Personal appearances
TV Episode, freebase.type_profile.strict_included_types, Inanimate
TV Episode, type.type.properties, Director
TV Episode, type.type.expected_by, First TV appearance
TV Episode, type.type.properties, Episode number
Mutant Planet: New Zealand, common.topic.notable_types, TV Episode
TV Episode, freebase.type_profile.strict_included_types, Non-Agent

Answer: Parliamentary system
Unitary state
Constitutional monarchy