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 knows which body of water flows under Saratov Bridge? 
Knowledge Triplets: Volga River, geography.river.cities, Saratov
Russia, location.location.partially_contains, Ishim River
Russia, location.location.partiallycontains, m.0wg8wg8
Ural River, location.location.partially_contained_by, m.0wg8wqg
Russia, common.topic.webpage, m.09x58v5
m.0wg8wjn, location.partial_containment_relationship.partially_contains, Seym River
Russia, location.location.partially_contains, Argun River
Bridge, freebase.type_hints.included_types, Location
Rus', location.location.partially_containedby, Russia
Saratov Bridge, location.location.containedby, Russia
Volga River, location.location.containedby, Europe
Tobol River, geography.river.basin_countries, Russia
Shishged River, location.location.partially_contained_by, m.0wjpmtc
Russia, location.location.partiallycontains, m.0wg8wcj
Volga River, geography.river.cities, Astrakhan
m.09x3m7w, common.webpage.topic, Russia
Piusa, geography.river.basin_countries, Russia
Russia, common.topic.webpage, m.0b4863d
Russia, location.location.partially_contains, Kolyma River
Bridge Type, type.property.schema, Bridge
Lovat River, geography.river.basin_countries, Russia
Tumen River, location.location.containedby, Eurasia
Volga River, location.location.containedby, Russia
Bridge, type.type.properties, Width
m.0wjplkb, location.partial_containment_relationship.partially_contains, Vuoksi River
m.0wr4pc8, location.partial_containment_relationship.partially_contains, Oskol River
Russia, location.location.partially_contains, Łyna River
Russia, location.location.adjoin_s, m.02xw90z
Argun River, common.topic.notable_types, River
Russia, location.location.partiallycontains, m.0wg8wbd
Khakassia, location.location.containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wfs
Amur River, location.location.partially_containedby, Russia
Clearance Below, type.property.schema, Bridge
Volga River, geography.body_of_water.bridges, Saratov Bridge
m.09x58v5, common.webpage.topic, Russia
Russia, location.location.partiallycontains, m.0wg8wr2
Kineshma Bridge, transportation.bridge.body_of_water_spanned, Volga River
Russia, location.location.partiallycontains, m.0wp5rqf
Terek River, location.location.containedby, Europe
Yenisei River, location.location.partially_containedby, Russia
Bridge, type.type.domain, Transportation
Russia, location.location.adjoin_s, m.05gq88m
Bridge Type, type.property.reverse_property, Bridges of this type
m.0wp5qq7, location.partial_containment_relationship.partially_contains, Onon River
Bridge, freebase.type_profile.equivalent_topic, Bridge
Terek River, geography.river.basin_countries, Chechnya
Yenisei River, geography.river.basin_countries, Russia
Dnieper, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wg8wdz
Russia, location.location.partially_contains, Sozh River
Russia, location.location.events, Battle of Lake Khasan
Šešupė, geography.river.mouth, Neman
Russia, location.location.partiallycontains, m.0wg8wdn
Saratov Oblast, location.location.contains, Saratov
Russia, location.location.partiallycontains, m.0wjpmtc
Palata River, location.location.partially_containedby, Russia
Bridge, type.type.properties, Bridge Type
Psel River, location.location.partially_contained_by, m.0wg8wgf
Russia, location.location.partially_contains, Palata River
Sozh River, location.location.partially_containedby, Russia
Ural River, location.location.partially_containedby, Asia
Altai Krai, location.location.containedby, Russia
Russia, location.location.partially_contains, Irtysh River
Palata River, location.location.containedby, Europe
Psou River, location.location.partially_containedby, Russia
Bridge, type.type.properties, Body Of Water Spanned
Russia, location.location.partially_contains, Terek River
Russia, location.location.partiallycontains, m.0wp5stw
Ural River, geography.river.mouth, Caspian Sea
Yenisei River, location.location.partially_contained_by, m.0wg8wmt
Amur River, location.location.partially_contained_by, m.0wg8wkr
Saratov, location.location.containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wb7
m.0wjpmtc, location.partial_containment_relationship.partially_contains, Shishged River
m.09w7tqc, common.webpage.topic, Russia
Lovat River, location.location.partially_containedby, Novgorod Oblast
Daugava, geography.river.basin_countries, Russia
Saratov-avto-most, common.image.appears_in_topic_gallery, Saratov Bridge
Novgorod Oblast, location.location.partially_contains, Lovat River
Russia, location.location.adjoin_s, m.02xw909
Russia, location.location.events, Lake Naroch Offensive
Saratov Bridge, common.topic.image, Saratov-avto-most
Tes River, location.location.containedby, Asia
Bridge, freebase.type_profile.strict_included_types, Location
Little Yenisei River, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wg8wqx
Lieksanjoki, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wg8wh1
Russia, location.location.adjoin_s, m.02wj9d3
Šešupė, geography.river.basin_countries, Russia
Argun River, location.location.partially_contained_by, m.0wg8wpj
Bridge Type, rdf-schema#domain, Bridge
Tyumen Oblast, location.location.partially_contains, Tobol River
m.0wp5rqf, location.partial_containment_relationship.partially_contains, Little Yenisei River
m.0wg8wj5, location.partial_containment_relationship.partially_contains, Psou River
Russia, location.location.partially_contains, Neman
Volga River, common.topic.article, m.0h2j5
Russia, location.location.partially_contains, Psou River
Russia, location.location.events, g.1222nvnb
Russia, location.location.partiallycontains, m.0wjpp0g
Russia, location.location.partiallycontains, m.0wg8wnr
Piusa, location.location.partially_containedby, Russia
Lutto, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wjpn7b
Russia, location.location.events, g.12pgd1pgm
Ural River, geography.river.origin, Russia
Tumen River, location.location.partially_contained_by, m.0wg8wn8
m.0b48cnz, common.webpage.topic, Russia
Russia, location.location.events, g.12mb3x39f
m.0wg8wpj, location.partial_containment_relationship.partially_contains, Argun River
Russia, common.topic.webpage, m.09w7tqc
Russia, location.location.partiallycontains, m.0wg8wgx
Body Of Water Spanned, type.property.master_property, Bridges
m.0wg8wgf, location.partial_containment_relationship.partially_contains, Psel River
Tes River, location.location.partially_containedby, Russia
Argun River, location.location.partially_containedby, Russia
m.0b4863d, common.webpage.topic, Russia
Russia, location.location.partially_contains, Lovat River
Sozh River, location.location.containedby, Europe
Ilek River, location.location.partially_containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wn8
Russia, location.location.partiallycontains, m.0wg8wf3
m.0wg8wkr, location.partial_containment_relationship.partially_contains, Amur River
Russia, common.topic.webpage, m.0b6r_v0
Psel River, geography.river.mouth, Dnieper
Russia, location.location.partiallycontains, m.0wg8wj0
Russia, location.location.partially_contains, Oskol River
Russia, location.location.partiallycontains, m.0wg8wl7
Russia, location.location.adjoin_s, m.05gq4vn
Little Yenisei River, location.location.containedby, Asia
Russia, common.topic.webpage, m.09xlrlp
Amur River, location.location.partially_containedby, Khabarovsk Krai
Volga River, geography.geographical_feature.category, River
Volga River, geography.body_of_water.bridges, Kineshma Bridge
Kolyma River, location.location.partially_containedby, Russia
Volga River, geography.river.cities, Kazan
Russia, location.location.partially_contains, Samur River
Kalmykia, location.location.containedby, Russia
Ishim River, location.location.partially_containedby, Russia
Amur River, location.location.containedby, Asia
m.0b6r_v0, common.webpage.topic, Russia
Volga River, geography.river.cities, Nizhny Novgorod
Saratov Bridge, geography.body_of_water.bridges, Volga River
Russia, location.location.partiallycontains, m.0wjpn7r
Ishim River, location.location.partially_contained_by, m.0wg8wg8
Irtysh River, geography.river.basin_countries, Russia
Sozh River, geography.river.basin_countries, Russia
Kineshma Bridge, common.topic.notable_types, Bridge
Shishged River, location.location.partially_containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wkr
Russia, common.topic.webpage, m.09y5nq5
Russia, location.location.partiallycontains, m.0wg8wcc
Little Yenisei River, location.location.partially_containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wp_
Russia, location.location.partiallycontains, m.0wg8wdt
Chikoy River, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wg8wpc
Russia, common.topic.webpage, m.09x3m7w
Russia, location.location.partiallycontains, m.0wg8wfz
Iput River, location.location.partially_contained_by, m.0wg8whk
Łyna River, geography.river.basin_countries, Russia
Russia, location.location.partially_contains, Onon River
Ural River, location.location.partially_containedby, Europe
Russia, location.location.partiallycontains, m.0wg8wg3
Irtysh River, location.location.containedby, Asia
Ural River, location.location.partially_containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wgf
BC Avtodor Saratov, sports.sports_team.location, Russia
Bridge, type.type.expected_by, Bridges
m.09yb763, common.webpage.topic, Russia
Russia, location.location.partiallycontains, m.0wp5r0f
Russia, common.topic.webpage, m.0b46k4c
Russia, location.location.partiallycontains, m.0wg8wbr
m.0wg8wlq, location.partial_containment_relationship.partially_contains, Desna River
Russia, location.location.partiallycontains, m.0wg8whk
Russia, location.location.partiallycontains, m.0wg8wk8
Russia, location.location.partially_contains, Dnieper
Palata River, location.location.partially_contained_by, m.0wg8wr2
Saratov, sports.sports_team_location.teams, BC Avtodor Saratov
Russia, location.location.partiallycontains, m.0wg8wff
Russia, location.location.partiallycontains, m.0wg8wfm
Russia, location.location.partiallycontains, m.0wg8wmt
Onon River, location.location.partially_contained_by, m.0wp5qq7
Donets, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wg8wr7
Sozh River, common.topic.notable_types, River
Russia, location.location.partially_contains, Menza River
Tuva, location.location.containedby, Russia
Bridges, type.property.reverse_property, Body Of Water Spanned
Łyna River, location.location.partially_containedby, Russia
Kolyma River, location.location.containedby, Asia
Sozh River, location.location.partially_contained_by, m.0wrkvlh
Russia, location.location.partially_contains, Tumen River
Oskol River, location.location.partially_contained_by, m.0wr4pc8
Russia, location.location.partiallycontains, m.0wg8wj5
m.09y096m, common.webpage.topic, Russia
Kolyma River, geography.river.basin_countries, Russia
Saratov Oblast, location.location.containedby, Russia
Irkutsk Oblast, location.location.containedby, Russia
Moscow, common.topic.subject_of, Carnegie Moscow Center
Angrapa River, geography.river.basin_countries, Russia
m.0b467cd, common.webpage.topic, Russia
Lovat River, common.topic.notable_types, River
Russia, common.topic.webpage, m.0j1bzrl
Body Of Water Spanned, type.property.schema, Bridge
Terek River, location.location.partially_containedby, Russia
Total Length, rdf-schema#domain, Bridge
Russia, location.location.partially_contains, Psel River
Russia, location.location.partiallycontains, m.0wzlvzh
Lovat River, location.location.containedby, Europe
Selenga River, geography.river.basin_countries, Russia
Lovat River, location.location.partially_containedby, Russia
m.0wg8wr2, location.partial_containment_relationship.partially_contains, Palata River
m.09y5nq5, common.webpage.topic, Russia
Russia, location.location.partiallycontains, m.0wg8wdb
Palata River, geography.river.origin, Russia
Onon River, geography.river.basin_countries, Russia
Vuoksi River, location.location.containedby, Europe
Samur River, location.location.partially_contained_by, m.0wg8wg3
Volga River, common.topic.image, Volga in Yaroslavl (autumn morning)
Total Length, type.property.schema, Bridge
m.07nh6v1, base.ontologies.ontology_instance_mapping.freebase_topic, Volga River
Angrapa River, location.location.partially_contained_by, m.0wg8wl7
Irtysh River, location.location.partially_containedby, Russia
Little Yenisei River, geography.river.mouth, Yenisei River
Bridge, type.type.properties, Locale
Iput River, geography.river.basin_countries, Russia
Kolyma River, location.location.partially_containedby, Magadan Oblast
Caspian Sea, geography.lake.inflow, Ural River
Volga River, base.schemastaging.context_name.pronunciation, g.125_l9bz5
Seym River, geography.river.mouth, Desna River
m.0wg8wj0, location.partial_containment_relationship.partially_contains, Terek River
Volga River, common.topic.notable_for, g.12582sjth
Russia, location.location.partiallycontains, m.0wkd_gg
Russia, location.location.adjoin_s, m.02xw8_w
m.0wg8wfz, location.partial_containment_relationship.partially_contains, Lovat River
Ilek River, location.location.partially_contained_by, m.0wg8wmn
Angrapa River, location.location.partially_containedby, Russia
Neman, geography.river.basin_countries, Russia
Vorskla River, location.location.containedby, Europe
Psel River, location.location.containedby, Europe
Samur River, location.location.partially_containedby, Russia
Bridge, freebase.type_hints.included_types, Structure
Volga River, geography.river.origin, Valdai Hills
Bridge, freebase.type_profile.published, Published
Bridge, common.topic.article, m.03bqfkm
Russia, location.location.partially_contains, Tobol River
Sverdlovskaya Oblast, location.location.containedby, Russia
Seym River, location.location.partially_containedby, Russia
Vorskla River, geography.river.basin_countries, Russia
m.05gq88m, location.adjoining_relationship.adjoins, Russia
Oskol River, location.location.partially_containedby, Russia
Saratov Bridge, common.topic.notable_for, g.1257yfm81
Tobol River, location.location.partially_containedby, Tyumen Oblast
Onon River, location.location.containedby, Asia
Russia, location.location.partiallycontains, m.0w_0cc1
Yenisei River, common.topic.notable_types, River
Oskol River, location.location.containedby, Europe
Łyna River, common.topic.notable_types, River
Russia, location.location.partiallycontains, m.0wg8wk3
Russia, location.location.partially_contains, Lutto
Russia, location.location.partiallycontains, m.0wg8wcp
Russia, location.location.partially_contains, Shishged River
m.02xw902, location.adjoining_relationship.adjoins, Russia
Russia, location.location.partiallycontains, m.0wg8wnx
Bridges, rdf-schema#range, Bridge
Russia, location.location.partiallycontains, m.0wg8wpj
Battle of Lake Khasan, time.event.locations, Russia
Desna River, location.location.containedby, Europe
Psou River, geography.river.basin_countries, Russia
Locale, type.property.schema, Bridge
Ural River, geography.river.basin_countries, Russia
Russia, location.location.partially_contains, Ural River
m.0wg8wnr, location.partial_containment_relationship.partially_contains, Selenga River
m.0wkd_gg, location.partial_containment_relationship.partially_contains, Łyna River
Russia, location.location.partially_contains, Chikoy River
Russia, location.location.partially_contains, Selenga River
m.0jkldkv, location.adjoining_relationship.adjoins, Russia
Russia, common.topic.webpage, m.02n9g1s
Russia, location.location.partiallycontains, m.0w_kmhm
Amur River, geography.river.origin, Argun River
Tobol River, location.location.partially_containedby, Russia
Russia, location.location.adjoin_s, m.0jkldkv
Russia, common.topic.webpage, m.09y096m
Russia, location.location.events, g.12mkz27km
Saratov, location.location.containedby, Saratov Oblast
m.0wg8wp_, location.partial_containment_relationship.partially_contains, Kolyma River
Desna River, geography.river.basin_countries, Russia
Samur River, geography.river.mouth, Caspian Sea
Russia, location.location.events, g.12pgcr9f1
Bashkortostan, location.location.containedby, Russia
Vorskla River, geography.river.origin, Belgorod Oblast
Russia, location.location.events, Nikolayevsk Incident
Terek River, location.location.partially_contained_by, m.0wg8wj0
Vorskla River, common.topic.notable_types, River
Bridge, freebase.type_profile.kind, Definition
Volga River, base.ontologies.ontology_instance.equivalent_instances, m.07nh6v1
Body Of Water Spanned, rdf-schema#domain, Bridge
m.0b46k4c, common.webpage.topic, Russia
m.030r6dc, location.adjoining_relationship.adjoins, Russia
Desna River, location.location.partially_containedby, Smolensk Oblast
Onon River, location.location.partially_containedby, Russia
Samur River, location.location.partially_containedby, Europe
m.0wg8wg8, location.partial_containment_relationship.partially_contains, Ishim River
Tobol River, location.location.containedby, Asia
Russia, common.topic.webpage, m.0b46kyk
Saratov Bridge, transportation.bridge.body_of_water_spanned, Volga River
m.0j1bzrl, common.webpage.topic, Russia
Desna River, location.location.partially_contained_by, m.0wg8wlq
Russia, location.location.adjoin_s, m.02xw8_n
m.02n9g15, common.webpage.topic, Russia
Russia, location.country.administrative_divisions, Saratov Oblast
Volga River, common.topic.notable_types, River
Russia, location.location.partiallycontains, m.0wg8wd4
Russia, location.location.partiallycontains, m.0wg8wf8
Bridge Type, owl#inverseOf, Bridges of this type
Seym River, location.location.partially_contained_by, m.0wg8wjn
Selenga River, location.location.partially_containedby, Russia
Oskol River, geography.river.basin_countries, Russia
Ilek River, geography.river.basin_countries, Russia
Locale, rdf-schema#domain, Bridge
Russia, location.location.partially_contains, Vorskla River
Lovat River, location.location.partially_contained_by, m.0wg8wfz
Tobol River, location.location.partially_contained_by, m.0wg8wnx
Chikoy River, location.location.partially_containedby, Russia
Argun River, geography.river.basin_countries, Russia
Chikoy River, location.location.containedby, Asia
Saratov Bridge, location.location.containedby, Russia
Russia, location.location.adjoin_s, m.05g_64l
Iput River, location.location.partially_containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wdh
Russia, location.location.partiallycontains, m.0wg8wc_
m.0wg8wr7, location.partial_containment_relationship.partially_contains, Tes River
Russia, common.topic.article, m.06bp8
Saratov Oblast, location.administrative_division.country, Russia
Russia, location.location.partially_contains, Desna River
Russia, sports.sports_team_location.teams, BC Avtodor Saratov
Chuvashia, location.location.containedby, Russia
Vorskla River, location.location.partially_containedby, Russia
Russia, location.location.partially_contains, Rus'
Volga River, common.topic.image, none The Volga at Ulyanovsk
Terek River, geography.river.mouth, Caspian Sea
Europe, location.location.partially_contains, Ural River
Volga River, geography.river.mouth, Caspian Sea
Desna River, location.location.partially_containedby, Russia
Psel River, geography.river.origin, Kursk Oblast
Yenisei River, location.location.containedby, Asia
m.02xw90r, location.adjoining_relationship.adjoins, Russia
Russia, location.location.adjoin_s, m.05sspv0
Russia, location.location.partially_contains, Curonian Spit
Perm Krai, location.location.containedby, Russia
Russia, location.location.partiallycontains, m.0wjpn86
m.0wg8wqg, location.partial_containment_relationship.partially_contains, Ural River
Psou River, location.location.partially_containedby, Europe
Russia, location.location.partiallycontains, m.0wg8wm5
Caspian Sea, geography.lake.basin_countries, Russia
m.09xlrlp, common.webpage.topic, Russia
Russia, common.topic.webpage, m.09yb763
Bridge, freebase.type_profile.strict_included_types, Topic
m.0wg8wmn, location.partial_containment_relationship.partially_contains, Ilek River
Psou River, geography.river.origin, Greater Caucasus
Bridge, type.type.properties, Clearance Below
BC Avtodor Saratov, sports.sports_team.location, Saratov
m.05g_64l, location.adjoining_relationship.adjoins, Russia
Ishim River, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wg8wcv
Russia, common.topic.subject_of, Carnegie Moscow Center
Russia, common.topic.webpage, m.0b48cnz
Bridges, owl#inverseOf, Body Of Water Spanned
Menza River, location.location.containedby, Asia
Bridge, type.type.properties, Longest Span
Bridge, type.type.properties, Number of spans
Russia, location.location.partiallycontains, m.0wp5qq7
m.02wj9d3, location.adjoining_relationship.adjoins, Russia
Terek River, geography.river.basin_countries, Russia
Caspian Sea, geography.lake.inflow, Volga River
m.0wg8wh1, location.partial_containment_relationship.partially_contains, Vorskla River
Iput River, location.location.containedby, Europe
Psou River, location.location.partially_contained_by, m.0wg8wj5
Russia, location.location.partiallycontains, m.0wg8wjn
Amur River, geography.river.origin, Onon River
Vuoksi River, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wjplkb
Bridge, type.type.properties, Total Length
Desna River, geography.river.mouth, Dnieper
m.05g_659, location.adjoining_relationship.adjoins, Russia
m.02xw909, location.adjoining_relationship.adjoins, Russia
Amur River, geography.river.basin_countries, Russia
Seym River, geography.river.origin, Russia
Vorskla River, location.location.partially_contained_by, m.0wg8wh1
Russia, location.location.partiallycontains, m.0zn71sy
Sozh River, geography.river.mouth, Dnieper
Russia, location.location.partiallycontains, m.0zmpsh3
m.0wrkvlh, location.partial_containment_relationship.partially_contains, Sozh River
Russia, location.location.partiallycontains, m.0wg8wgr
Tumen River, location.location.partially_containedby, Russia
Iput River, location.location.partially_containedby, Smolensk Oblast
Russia, location.location.partiallycontains, m.0wg8wlq
Russia, location.location.adjoin_s, m.02xw90r
Russia, location.location.partiallycontains, m.0wrkvlh
Russia, location.location.partiallycontains, m.0wg8wqg
m.0wg8whk, location.partial_containment_relationship.partially_contains, Iput River
Russia, location.location.partiallycontains, m.0wg8wbl
Russia, location.location.adjoin_s, m.05g_659
Palata River, geography.river.basin_countries, Russia
Sozh River, geography.river.origin, Russia
Russia, location.location.partiallycontains, m.0wg8wb2
Paatsjoki, geography.river.basin_countries, Russia
Russia, location.location.partiallycontains, m.0wg8wc6
Curonian Spit, location.location.partially_containedby, Russia
Volga River, geography.body_of_water.bridges, g.1235qp6z
Russia, location.location.adjoin_s, m.030r6dc
Łyna River, location.location.containedby, Europe
m.0wg8wmt, location.partial_containment_relationship.partially_contains, Yenisei River
Tes River, location.location.partially_contained_by, m.0wg8wr7
Selenga River, location.location.containedby, Asia
Bridge, type.type.expected_by, Bridges of this type
Russia, location.location.partiallycontains, m.0_gjb9b
Russia, common.topic.webpage, m.0b467cd
Russia, location.location.partially_contains, Gestola
Smolensk Oblast, location.location.partially_contains, Iput River
Saratov Bridge, common.topic.notable_types, Bridge
Psou River, location.location.partially_containedby, Asia
Bridges, type.property.expected_type, Bridge
Vuoksi River, location.location.partially_containedby, Russia
Russia, common.topic.webpage, m.02n9g15
Russia, location.location.partially_contains, Yenisei River
Shishged River, location.location.containedby, Asia
Psel River, geography.river.basin_countries, Russia
Ishim River, location.location.containedby, Asia
Bridge, freebase.type_profile.strict_included_types, Structure
m.0wp5r0f, location.partial_containment_relationship.partially_contains, Chikoy River
Vuoksi River, location.location.partially_contained_by, m.0wjplkb
Tes River, geography.river.basin_countries, Russia
Łyna River, location.location.partially_contained_by, m.0wkd_gg
Russia, location.location.partially_contains, Iput River
Tobol River, location.location.containedby, Europe
Russia, location.location.events, g.12pgczy4h
Seym River, geography.river.basin_countries, Russia
Caspian Sea, geography.lake.inflow, Terek River
m.0wg8wgr, location.partial_containment_relationship.partially_contains, Irtysh River
Menza River, location.location.partially_containedby, Russia
Saratov-avto-most, common.image.size, m.029tcyz
Argun River, location.location.containedby, Asia
Selenga River, location.location.partially_contained_by, m.0wg8wnr
m.02n9g1s, common.webpage.topic, Russia
Irtysh River, location.location.partially_contained_by, m.0wg8wgr
Saratov Bridge, common.topic.article, m.09fp9x
Volga River, geography.river.cities, Volgograd
Volga River, location.location.events, Syzran–Samara Operation
m.0wg8wl7, location.partial_containment_relationship.partially_contains, Angrapa River
Russia, location.location.partiallycontains, m.0wg8wmn
Russia, location.location.containedby, Valdai Hills
Russia, location.location.partiallycontains, m.0wr4pc8
Russia, location.location.partially_contains, Tes River
Russia, location.location.partiallycontains, m.0wkjtzy
Sverdlovskaya Oblast, location.administrative_division.country, Russia
Ilek River, location.location.containedby, Asia
Siberian Federal District, location.location.containedby, Russia
Argun River, geography.river.mouth, Amur River
Seym River, location.location.containedby, Europe
Clearance Below, rdf-schema#domain, Bridge
Psel River, location.location.partially_containedby, Russia
Russia, location.location.partiallycontains, m.0wg8wbx
m.0b46kyk, common.webpage.topic, Russia
Desna River, geography.river.origin, Russia
Russia, location.location.partially_contains, Ilek River
Lake Naroch Offensive, time.event.locations, Russia
Russia, location.location.partially_contains, Angrapa River
Mari El, location.location.containedby, Russia
Russia, common.topic.notable_for, g.1256npm31
Volga River, geography.river.basin_countries, Russia
Samur River, location.location.partially_containedby, Asia
Vorskla River, geography.river.mouth, Dnieper
Russia, location.location.partially_contains, Seym River
Hydrometeorological Centre of Russia, government.government_agency.jurisdiction, Russia
Russia, location.location.partially_contains, Amur River
Russia, location.location.partially_contains, Little Yenisei River
Udmurtia, location.location.containedby, Russia
Russia, location.location.partiallycontains, m.0wycvdr
m.0wg8wnx, location.partial_containment_relationship.partially_contains, Tobol River
m.0wg8wn8, location.partial_containment_relationship.partially_contains, Tumen River
Russia, location.location.partiallycontains, m.0wg8wgl
Tumen River, common.topic.notable_types, River
Saratov Bridge, location.location.geolocation, m.02_dlgp
River, freebase.type_profile.published, Published
Russia, location.location.partiallycontains, m.0wg8wc1
Russia, location.location.adjoin_s, m.02xw902
m.02xw90z, location.adjoining_relationship.adjoins, Russia
Volga River, geography.river.origin, Valdai Hills
Russia, location.location.partially_contains, Vuoksi River
Angrapa River, location.location.containedby, Europe
Palata River, geography.river.mouth, Daugava
Tobol River, common.topic.notable_types, River
Bridge, freebase.type_hints.included_types, Topic

Answer: Valdai Hills