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: solar hijri calendar has what month under it's calendar system? 
Knowledge Triplets: Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.schedule_in_prose, annually on the last night of the month of Āzar
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.schedule_in_prose, annually on the last night of the month of Āzar
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Tajikistan, 2013)
m.019h, type.permission.controls, m.0l_0rck
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.sundown, true
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.holiday, Yaldā
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.is_non_work, false
Yaldā, base.schemastaging.holiday_extra.observance_rule, Yaldā observance rule (Kurdistan, 2000 - now)
Yaldā nominal occurrence (Afghanistan, 2012), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Afghanistan, 2000 - now)
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.date_established, 2000-12-21
Yaldā nominal occurrence (Kurdistan, 2012), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Kurdistan, 2000 - now)
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.holiday, Yaldā
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.sundown, true
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Azerbaijan, 2011)
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Iran, 2013)
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.holiday, Yaldā
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.schedule_in_prose, annually on the last night of the month of Āzar
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.month, Dey
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Turkmenistan, 2013)
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.month, Dey
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.is_non_work, false
Yaldā nominal occurrence (Tajikistan, 2013), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Tajikistan, 2000 - now)
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.date_established, 2000-12-21
m.0l_0rck, type.object.permission, m.019h
Yaldā nominal occurrence (Tajikistan, 2011), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Tajikistan, 2000 - now)
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.sundown, true
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Tajikistan, 2011)
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.location, Azerbaijan
Yaldā, base.schemastaging.holiday_extra.observance_rule, Yaldā observance rule (Afghanistan, 2000 - now)
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Iran, 2012)
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.is_non_work, false
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.calendar, Solar Hijri calendar
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Kurdistan, 2012)
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.date_established, 2000-12-21
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.schedule_in_prose, annually on the last night of the month of Āzar
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.month, Dey
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.month, Dey
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.location, Iran
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.day_of_month, 1
m.0tb1v5g, dataworld.gardening_hint.last_referenced_by, m.0l_0rck
Yaldā nominal occurrence (Azerbaijan, 2012), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Azerbaijan, 2000 - now)
Yaldā nominal occurrence (Turkmenistan, 2013), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Turkmenistan, 2000 - now)
Yaldā nominal occurrence (Kurdistan, 2013), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Kurdistan, 2000 - now)
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.date_established, 2000-12-21
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.location, Iraqi Kurdistan
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Tajikistan, 2012)
Yaldā nominal occurrence (Turkmenistan, 2011), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Turkmenistan, 2000 - now)
Yaldā nominal occurrence (Turkmenistan, 2012), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Turkmenistan, 2000 - now)
Yaldā nominal occurrence (Azerbaijan, 2013), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Azerbaijan, 2000 - now)
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.calendar, Solar Hijri calendar
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Turkmenistan, 2011)
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.location, Turkmenistan
Yaldā, base.schemastaging.holiday_extra.observance_rule, Yaldā observance rule (Turkmenistan, 2000 - now)
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Azerbaijan, 2013)
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Iran, 2011)
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Kurdistan, 2013)
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.sundown, true
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.location, Afghanistan
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Afghanistan, 2013)
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.day_of_month, 1
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.date_established, 2000-12-21
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.day_of_month, 1
Solar Hijri calendar, time.calendar.months, Dey
Yaldā, base.schemastaging.holiday_extra.observance_rule, Yaldā observance rule (Tajikistan, 2000 - now)
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.schedule_in_prose, annually on the last night of the month of Āzar
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.is_non_work, false
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.month, Dey
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Afghanistan, 2011)
Yaldā nominal occurrence (Azerbaijan, 2011), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Azerbaijan, 2000 - now)
Yaldā, base.schemastaging.holiday_extra.observance_rule, Yaldā observance rule (Azerbaijan, 2000 - now)
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.calendar, Solar Hijri calendar
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.month, Dey
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Kurdistan, 2011)
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.day_of_month, 1
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.is_non_work, false
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Afghanistan, 2012)
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.sundown, true
Dey, time.month.calendar_system, Solar Hijri calendar
Yaldā nominal occurrence (Iran, 2013), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Iran, 2000 - now)
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.is_non_work, false
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.date_established, 2000-12-21
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.sundown, true
Yaldā observance rule (Iran, 2000 - now), base.schemastaging.holiday_observance_rule.calendar, Solar Hijri calendar
Yaldā nominal occurrence (Afghanistan, 2011), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Afghanistan, 2000 - now)
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.location, Tajikistan
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Turkmenistan, 2012)
m.0l_0rck, dataworld.gardening_hint.last_referenced_by, Solar Hijri calendar
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.calendar, Solar Hijri calendar
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.holiday, Yaldā
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.day_of_month, 1
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.holiday, Yaldā
Yaldā nominal occurrence (Iran, 2012), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Iran, 2000 - now)
Yaldā observance rule (Azerbaijan, 2000 - now), base.schemastaging.holiday_observance_rule.nominal_occurrence, Yaldā nominal occurrence (Azerbaijan, 2012)
Yaldā nominal occurrence (Iran, 2011), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Iran, 2000 - now)
Yaldā, base.schemastaging.holiday_extra.observance_rule, Yaldā observance rule (Iran, 2000 - now)
Yaldā nominal occurrence (Afghanistan, 2013), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Afghanistan, 2000 - now)
Yaldā observance rule (Kurdistan, 2000 - now), base.schemastaging.holiday_observance_rule.calendar, Solar Hijri calendar
Yaldā nominal occurrence (Tajikistan, 2012), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Tajikistan, 2000 - now)
Yaldā observance rule (Turkmenistan, 2000 - now), base.schemastaging.holiday_fixed_date_observance_rule.day_of_month, 1
Yaldā observance rule (Afghanistan, 2000 - now), base.schemastaging.holiday_observance_rule.schedule_in_prose, annually on the last night of the month of Āzar
Yaldā observance rule (Tajikistan, 2000 - now), base.schemastaging.holiday_observance_rule.holiday, Yaldā
Yaldā nominal occurrence (Kurdistan, 2011), base.schemastaging.holiday_occurrence.nominal_occurrence_of, Yaldā observance rule (Kurdistan, 2000 - now)

Answer: Dey