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: Where does the river end that starts in Brower's Spring? 
Knowledge Triplets: Yellowstone River, location.location.containedby, United States of America
Prairie Nocturne, book.written_work.subjects, Montana
Lone Calder star, book.written_work.subjects, Montana
Location, type.type.properties, Land area
Partially contained by, type.property.master_property, Partially contains
Montana, book.book_subject.works, Fools Crow
Montana, location.us_state.capital, Helena
Milk River, location.location.partially_containedby, United States of America
Location, freebase.documented_object.documentation, m.0kpqf7
United States of America, base.locations.countries.continent, North America
m.0wg90km, location.partial_containment_relationship.partially_contains, Yellowstone River
m.0wg90jv, location.partial_containment_relationship.partially_contains, Missouri River
The Border Legion, book.written_work.subjects, Montana
Montana, location.location.partially_contains, Gallatin River
Prince Charming, book.written_work.subjects, Montana
The Loop, book.written_work.subjects, Montana
Montana, location.location.partially_contains, Powder River
m.04st949, location.location_symbol_relationship.administrative_division, Montana
Montana, location.statistical_region.religions, m.04404_p
Location, freebase.type_profile.equivalent_topic, Location
Montana, book.book_subject.works, Land of My Heart
Evolution, book.written_work.subjects, Montana
Contains major portion of, rdf-schema#domain, Location
m.0wg90ks, location.partial_containment_relationship.partially_contained_by, Montana
Winter, book.written_work.subjects, Montana
Location, freebase.type_hints.included_types, Topic
m.0wg90l2, location.partial_containment_relationship.partially_contained_by, Montana
Frenchman River, location.location.partially_contained_by, m.0wkfv2v
Gallatin River, location.location.partially_containedby, Montana
Montana, book.book_subject.works, The Roadless Yaak
Montana, location.location.partiallycontains, m.0wkfv2v
Platte River, book.written_work.subjects, Montana
Montana, book.book_subject.works, Come the spring
Montana, common.topic.webpage, m.0gmk055
Montana, book.book_subject.works, To dream anew
Homestead, book.written_work.subjects, Montana
m.0wg90j_, location.partial_containment_relationship.partially_contains, Little Missouri River
Powder River, geography.river.mouth, Yellowstone River
Coterminous with, type.property.schema, Location
Montana, book.book_subject.works, Prince Charming
Location, freebase.domain_profile.equivalent_topic, Location
Mountain States, location.location.contains, Montana
Helena, location.location.containedby, United States of America
Contains, rdf-schema#domain, Location
Montana, book.book_subject.works, Nine below zero
m.046csgq, location.adjoining_relationship.adjoins, Montana
Montana, location.statistical_region.religions, m.04404dj
near, rdf-schema#domain, Location
Little Missouri River, location.location.containedby, United States of America
Land area, type.property.schema, Location
Kootenay River, location.location.containedby, North America
Bucking the sun, book.written_work.subjects, Missouri River
Water area, rdf-schema#domain, Location
Montana, location.location.partially_contains, Yellowstone River
m.0wg90lq, location.partial_containment_relationship.partially_contains, Kootenay River
Location, type.type.properties, Events
Frenchman River, geography.river.mouth, Milk River
Montana, book.book_subject.works, Wonders never cease
Montana, location.location.partiallycontains, m.0wg90kg
inside, type.property.schema, Location
Montana, book.book_subject.works, For the Roses
Helena, location.hud_county_place.place, Helena
Contains major portion of, type.property.expected_type, Location
Montana, location.location.partially_contains, Kootenay River
Montana, government.political_district.elections, United States Senate election in Montana, 2008
Partially contained by, type.property.schema, Location
m.0wg90l2, location.partial_containment_relationship.partially_contains, Milk River
Montana, book.book_subject.works, Colter
Montana, location.statistical_region.religions, m.044060k
Montana, location.location.partially_contains, Clarks Fork Yellowstone River
Montana, common.topic.image, Montana.png
Helena, location.location.containedby, Lewis and Clark County
Location, type.type.properties, Geometry
Invasion, book.written_work.subjects, Montana
Dark paradise, book.written_work.subjects, Montana
Montana, book.book_subject.works, Dark paradise
m.0wg90lq, location.partial_containment_relationship.partially_contained_by, Montana
Montana, common.topic.image, Montana.jpg
Brower's Spring, location.location.geolocation, m.0wm_spw
Montana, common.topic.image, Glacier NP Mt Brown
Yellowstone River, location.location.partially_containedby, Montana
Montana, location.location.events, 2010 Montana Math Film Festival
m.0wjplp0, location.partial_containment_relationship.partially_contains, Clark Fork River
Meta, freebase.type_kind.types, Topic
Montana, book.book_subject.works, Sweet talk
Breaking Clean, book.written_work.subjects, Montana
Contained by, type.property.master_property, Contains
Montana, location.statistical_region.religions, m.04404rk
Montana, book.book_subject.works, Morning Comes Softly
Montana, book.book_subject.works, Calder pride
Brower's Spring, location.location.containedby, Centennial Mountains
United States of America, location.country.first_level_divisions, Montana
Come the spring, book.written_work.subjects, Montana
Centennial Mountains, common.topic.notable_for, g.1256h65dt
m.0b6rxh5, common.webpage.topic, Montana
Partially contained by, rdf-schema#range, Location
Montana, location.statistical_region.religions, m.04406rq
Time zone(s), type.property.schema, Location
Topic, freebase.type_profile.published, Published
Montana, location.location.partially_contains, Slough Creek
Wibaux County, location.location.containedby, Montana
Location, freebase.type_profile.kind, Meta
Flathead County, location.location.time_zones, Mountain Time Zone
Montana, location.location.adjoin_s, m.046csgq
Little Missouri River, location.location.partially_contained_by, m.0wg90j_
People born here, rdf-schema#domain, Location
Slough Creek, location.location.partially_contained_by, m.0wg90lk
Location, type.type.properties, shape
Brower's Spring, common.topic.notable_for, g.125d3_4k2
United States Senate elections, 2006, time.event.locations, Montana
Montana, location.location.adjoin_s, m.02tg7yk
Montana, location.location.events, United States Senate elections, 2006
United States of America, location.location.time_zones, Mountain Time Zone
m.02xkt5j, location.adjoining_relationship.adjoins, Montana
Flathead County, freebase.valuenotation.is_reviewed, Time zone(s)
Location, type.type.properties, near
m.0wg90ld, location.partial_containment_relationship.partially_contained_by, Montana
Centennial Mountains, location.location.contains, Brower's Spring
Geolocation, rdf-schema#domain, Location
Geometry, rdf-schema#domain, Location
The Coming Storm, book.written_work.subjects, Montana
Brower's Spring, common.topic.article, m.0288rpc
Location, type.type.properties, GNIS ID
The Norman Maclean Reader, book.written_work.subjects, Montana
Yellowstone River, geography.river.mouth, Missouri River
Montana, location.statistical_region.religions, m.044046r
m.0wg90ky, location.partial_containment_relationship.partially_contains, Powder River
Calder pride, book.written_work.subjects, Montana
Montana, book.book_subject.works, The tall uncut
Frenchman River, location.location.containedby, North America
Montana, book.book_subject.works, Lightningbolt
Clarks Fork Yellowstone River, location.location.partially_containedby, Montana
Montana, book.book_subject.works, Lone Calder star
Primarily contained by, rdf-schema#domain, Location
Area, rdf-schema#domain, Location
Battle of Canyon Creek, time.event.included_in_event, Nez Perce War
Montana, location.location.events, Montana Absentee Ballot Request Deadline, 2012
m.09yqq7w, common.webpage.topic, Montana
Montana, location.location.time_zones, Mountain Time Zone
m.0wg90k4, location.partial_containment_relationship.partially_contained_by, Montana
m.02tghwb, location.adjoining_relationship.adjoins, Montana
United States of America, location.location.partially_contains, Milk River
Missouri River, location.location.partially_contained_by, m.0wg90jv
English Creek, book.written_work.subjects, Montana
Montana, book.book_subject.works, The last good kiss
UN/LOCODE, type.property.schema, Location
Clark Fork River, location.location.containedby, North America
Montana, book.book_subject.works, Sweet hearts
Location, type.type.properties, Street address
Montana, location.location.adjoin_s, m.02tgknw
Land of My Heart, book.written_work.subjects, Montana
Missouri River, location.location.containedby, United States of America
Mount Jefferson, location.location.containedby, North America
Montana, book.book_subject.works, The Loop
Montana, book.book_subject.works, The burning
Slough Creek, location.location.containedby, United States of America
Montana, book.book_subject.works, Lay the mountains low
Montana, location.location.partiallycontains, m.0wg90lq
Montana, book.book_subject.works, Blood lure
Nearby airports, rdf-schema#domain, Location
Coterminous with, rdf-schema#domain, Location
Montana, book.book_subject.works, Die Trying
m.0wkfv2v, location.partial_containment_relationship.partially_contained_by, Montana
Montana, book.book_subject.works, The Good Brother
Partially contains, rdf-schema#range, Location
Location, freebase.type_profile.published, Published
Montana, location.statistical_region.religions, m.04405cx
m.0wg90km, location.partial_containment_relationship.partially_contained_by, Montana
Making hay, book.written_work.subjects, Montana
Montana, book.book_subject.works, Keep the change
Montana, location.location.partiallycontains, m.0wg90j_
Montana, location.statistical_region.religions, m.04403wh
Tongue River, location.location.containedby, North America
Adjoins, rdf-schema#domain, Location
Montana, book.book_subject.works, The Border Legion
Location, type.type.properties, Primarily contained by
m.03hsh48, location.adjoining_relationship.adjoins, Montana
Montana, location.location.partiallycontains, m.0wg90lk
Montana, book.book_subject.works, Perma Red
Montana, book.book_subject.works, Breaking Clean
Montana, book.book_subject.works, Winslow in love
Brower's Spring, location.location.containedby, Montana
Montana, location.location.containedby, Mountain States
Location, type.type.properties, Contains major portion of
Nez Perce War, time.event.includes_event, Battle of Canyon Creek
Montana, location.location.events, 2006 Montana Math Film Festival
Partially contains, owl#inverseOf, Partially contained by
Montana, location.statistical_region.religions, m.04403pw
Mean elevation, rdf-schema#domain, Location
Little Missouri River, geography.river.mouth, Missouri River
Contains, rdf-schema#range, Location
m.0wg90k4, location.partial_containment_relationship.partially_contains, Mount Jefferson
Nearby airports, type.property.schema, Location
Montana, location.location.events, Smith Mine disaster
Montana, book.book_subject.works, The Hope Within
Gallatin River, geography.river.mouth, Missouri River
Montana, location.statistical_region.religions, m.04405zc
Montana, book.book_subject.works, The book of Yaak
Montana, common.topic.webpage, m.09yqq7w
Montana, location.statistical_region.religions, m.0440418
Tongue River, location.location.partially_contained_by, m.0wg90ld
Montana, location.location.partially_contains, Little Missouri River
Montana, location.location.partially_contains, Madison River
Montana, book.book_subject.works, Something to be desired
Missouri River, book.book_subject.works, Bucking the sun
Partially contains, type.property.reverse_property, Partially contained by
Montana, book.book_subject.works, The final country
Lewis and Clark County, location.location.contains, Helena
Montana, location.location.containedby, United States of America
Madison River, location.location.containedby, United States of America
Hole in the Sky, book.written_work.subjects, Montana
USBG name, rdf-schema#domain, Location
Montana, book.book_subject.works, In this we are native
m.0j518vp, location.cotermination.location, Montana
Montana, common.topic.webpage, m.0b6rxh5
Montana, book.book_subject.works, Indian Creek chronicles
Montana, location.location.partially_contains, Frenchman River
Montana, base.biblioness.bibs_location.country, United States of America
Montana, location.location.partiallycontains, m.0wg90ky
Location, common.topic.article, m.0kpqf7
Montana, location.location.containedby, Contiguous United States
Montana, location.location.adjoin_s, m.02tbl_n
US State, freebase.type_profile.published, Published
Gallatin River, location.location.containedby, North America
Montana, location.location.partially_contains, Tongue River
m.0wg90kg, location.partial_containment_relationship.partially_contained_by, Montana
Tongue River, geography.river.mouth, Yellowstone River
m.09yqlr9, common.webpage.topic, Montana
Madison River, location.location.partially_containedby, Montana
m.0gmk055, common.webpage.topic, Montana
Where the Sea Used to Be, book.written_work.subjects, Montana
m.0wg90k9, location.partial_containment_relationship.partially_contained_by, Montana
Events, rdf-schema#domain, Location
Montana, location.location.partiallycontains, m.0wg90l7
Montana, location.location.coterminous_with, m.0j518vp
Location, type.type.properties, UN/LOCODE
Partially contained by, rdf-schema#domain, Location
Montana, location.location.events, 2008 Montana Math Film Festival
United States of America, location.location.partially_contains, Kootenay River
Montana, book.book_subject.works, The cloud chamber
Centennial Mountains, location.location.geolocation, m.0wmy1wj
Montana, book.book_subject.works, Evolution
Montana, location.location.events, 2009 Montana Math Film Festival
Montana, location.location.events, Hayfield Fight
Montana, location.statistical_region.religions, m.0440542
Street address, rdf-schema#domain, Location
Tongue River, location.location.partially_containedby, Montana
Montana, book.book_subject.works, Where the Sea Used to Be
Montana, book.book_subject.works, The you I never knew
Contains, owl#inverseOf, Contained by
Clark Fork River, location.location.partially_containedby, Montana
Location, type.type.properties, inside
Slough Creek, location.location.partially_containedby, Montana
Blood lure, book.written_work.subjects, Montana
Contiguous United States, location.location.time_zones, Mountain Time Zone
Primarily contained by, type.property.expected_type, Location
Montana, book.book_subject.works, One is the sun
Montana, book.book_subject.works, The Ninemile Wolves
Location, type.type.properties, Coterminous with
Montana, book.book_subject.works, The Mexican Tree Duck
Montana, location.location.containedby, United States, with Territories
United States of America, location.location.partially_contains, Frenchman River
North America, location.location.partially_contains, United States of America
Montana, location.location.adjoin_s, m.02tghwb
Yellowstone River, location.location.containedby, North America
Contains, type.property.expected_type, Location
Montana, book.book_subject.works, English Creek
Montana, location.statistical_region.religions, m.04403vk
North America, location.location.partially_contains, United States, with Territories
Little Missouri River, location.location.partially_containedby, Montana
Mean elevation, type.property.schema, Location
Die Trying, book.written_work.subjects, Montana
Missouri River, location.location.containedby, North America
US State, freebase.type_hints.included_types, Location
GEOnet feature ID, rdf-schema#domain, Location
Contained by, type.property.schema, Location
Location, type.type.properties, Mean elevation
Montana, location.location.events, Montana Republican primary, 2012
Adjoins, type.property.schema, Location
In this we are native, book.written_work.subjects, Montana
Montana, location.statistical_region.religions, m.04405g7
Land area, rdf-schema#domain, Location
Montana, book.book_subject.works, Winter
US State, freebase.type_profile.strict_included_types, Topic
Montana, common.topic.webpage, m.09yqlr9
Frenchman River, location.location.partially_containedby, Montana
Lonesome land, book.written_work.subjects, Montana
UN/LOCODE, rdf-schema#domain, Location
near, type.property.schema, Location
Montana, book.book_subject.works, Green Calder grass
Montana, location.location.partially_contains, Bighorn River
Location, type.type.properties, GEOnet feature ID
Green Calder grass, book.written_work.subjects, Montana
Montana, location.location.adjoin_s, m.02xkt5j
GNIS ID, rdf-schema#domain, Location
Why I Came West, book.written_work.subjects, Montana
Kootenay River, location.location.partially_containedby, Montana
Montana, location.statistical_region.religions, m.04406jc
m.0wg90k9, location.partial_containment_relationship.partially_contains, Bighorn River
m.0wg90lk, location.partial_containment_relationship.partially_contained_by, Montana
m.0wg90lk, location.partial_containment_relationship.partially_contains, Slough Creek
m.0wg90ld, location.partial_containment_relationship.partially_contains, Tongue River
Slough Creek, location.location.containedby, North America
People born here, type.property.schema, Location
Montana, book.written_work.subjects, Montana
North America, location.location.contains_major_portion_of, United States of America
Montana, book.book_subject.works, Divine Victim
Bighorn River, location.location.partially_containedby, Montana
United States of America, location.country.administrative_divisions, Montana
Location, type.type.properties, Adjoins
Gallatin River, location.location.partially_contained_by, m.0wg90kg
Montana, book.book_subject.works, Swan Peak
Milk River, location.location.containedby, North America
In this we are native, book.written_work.subjects, United States of America
Geometry, type.property.schema, Location
United States, with Territories, location.location.partially_containedby, North America
Madison River, geography.river.mouth, Missouri River
Montana, location.location.events, Nez Perce War
m.0wkfv2v, location.partial_containment_relationship.partially_contains, Frenchman River
Glacier NP Mt Brown, common.image.appears_in_topic_gallery, Montana
Montana, book.book_subject.works, Calder promise
Helena, base.biblioness.bibs_location.state, Montana
Clarks Fork Yellowstone River, location.location.containedby, North America
Montana, location.location.partiallycontains, m.0wg90k9
Location, type.type.properties, Partially contained by
Fur-bearing trout, base.folklore.mythical_creature.area_of_occurrence, Montana
US State, freebase.type_hints.included_types, Topic
Montana, book.book_subject.works, Invasion
Bitterroot, book.written_work.subjects, Montana
Clark Fork River, location.location.partially_contained_by, m.0wjplp0
Partially contains, type.property.schema, Location
Montana, location.location.partiallycontains, m.0wg90jv
Montana, book.book_subject.works, The Coming Storm
Mount Jefferson, location.location.containedby, United States of America
Montana, book.book_subject.works, The Last Gunfighter
Water area, type.property.schema, Location
North America, location.location.time_zones, Mountain Time Zone
For the Roses, book.written_work.subjects, Montana
Milk River, geography.river.mouth, Missouri River
Contiguous United States, location.location.containedby, North America
Location, type.type.properties, Water area
m.04st86d, location.location_symbol_relationship.administrative_division, Montana
Montana, location.statistical_region.religions, m.04405jr
Montana, location.location.adjoin_s, m.03hsh48
Location, freebase.type_profile.strict_included_types, Inanimate
Location, type.type.properties, Adjectival form
Montana, book.book_subject.works, The cadence of grass
Location, type.type.properties, Contained by
point, type.property.schema, Location
Montana, location.statistical_region.religions, m.044054w
Missouri River, geography.river.origin, Brower's Spring
Montana, location.location.partially_contains, Mount Jefferson
Adjectival form, type.property.schema, Location
Montana, location.location.events, Battle of Canyon Creek
Montana, location.statistical_region.religions, m.04405nj
Montana, book.book_subject.works, Listen to the silence
Contiguous United States, location.location.contains, Montana
GNIS ID, type.property.schema, Location
Montana, book.book_subject.works, Cogewea, the half blood
Montana, book.book_subject.works, Hole in the Sky
inside, rdf-schema#domain, Location
The burning, book.written_work.subjects, Montana
Montana, book.book_subject.works, Jessica
Montana, book.book_subject.works, The Norman Maclean Reader
Montana, location.statistical_region.religions, m.04404rq
Montana, common.topic.notable_types, US State
Powder River, location.location.partially_containedby, Montana
Montana, book.book_subject.works, Bucking the sun
Primarily contained by, rdf-schema#range, Location
Milk River, location.location.partially_containedby, Montana
Montana, book.book_subject.works, Sleepless in Montana
Montana, location.statistical_region.religions, m.04405dc
Montana, location.location.events, 2005 Montana Math Film Festival
Divine Victim, book.written_work.subjects, Montana
Montana, book.book_subject.works, Lightning
United States of America, location.location.primarily_containedby, North America
Contained by, rdf-schema#domain, Location
Clarks Fork Yellowstone River, location.location.containedby, United States of America
Montana, book.book_subject.works, The whistling season
Montana, location.location.nearby_airports, L. M. Clayton Airport
Montana, location.administrative_division.capital, m.0jvw4nw
Montana, book.book_subject.works, Lonesome land
Events, type.property.schema, Location
m.02tbl_n, location.adjoining_relationship.adjoins, Montana
United States of America, location.location.containedby, United States, with Territories
Montana, book.book_subject.works, Making hay
Bighorn River, location.location.containedby, North America
Location, type.type.properties, Area
Montana, book.book_subject.works, Fiber
point, rdf-schema#domain, Location
Gallatin River, geography.river.basin_countries, United States of America
Gallatin River, location.location.containedby, United States of America
Montana, book.book_subject.works, True Colors
Location, type.type.properties, Time zone(s)
Meta, freebase.type_kind.types, Location
Montana, location.statistical_region.religions, m.04404q9
Frenchman River, location.location.partially_containedby, United States of America
Montana, location.location.partially_contains, Milk River
Montana, location.location.partially_contains, Missouri River
Centennial Mountains, common.topic.notable_types, Location
Montana, book.book_subject.works, The right madness
Mount Jefferson, location.location.partially_containedby, Montana
Street address, type.property.schema, Location
Location, type.type.properties, Geolocation
Location, type.type.properties, Contains
Montana, location.location.partiallycontains, m.0wjplp0
Brower's Spring, common.topic.notable_types, Location
Montana, common.topic.webpage, m.04lsvcx
Partially contains, rdf-schema#domain, Location
Montana, location.location.geolocation, m.0wmdlzr
m.0wg90ks, location.partial_containment_relationship.partially_contains, Clarks Fork Yellowstone River
m.0wg90l7, location.partial_containment_relationship.partially_contained_by, Montana
Bighorn River, location.location.partially_contained_by, m.0wg90k9
Montana, common.topic.article, m.050ll
Location, type.type.properties, point
Bighorn River, location.location.containedby, United States of America
Location, freebase.type_profile.tasks, fix /location/adjoining property
Battle of Canyon Creek, time.event.locations, Montana
Montana, common.topic.notable_for, g.1256dwxpy
Primarily contained by, type.property.schema, Location
Montana, location.location.events, Montana Voter Registration Deadline, 2012
Contains, type.property.schema, Location
Montana, book.book_subject.works, Montana
Contains major portion of, owl#inverseOf, Primarily contained by
Milk River, location.location.partially_contained_by, m.0wg90l2
Montana, location.administrative_division.country, United States of America
Montana, location.statistical_region.religions, m.04404hb
Montana, location.location.events, 2004 Montana Math Film Festival
Partially contains, type.property.expected_type, Location
Missouri River, geography.river.basin_countries, United States of America
United States of America, location.location.partially_containedby, North America
Powder River, location.location.containedby, North America
Lay the mountains low, book.written_work.subjects, Montana
Contained by, rdf-schema#range, Location
Nez Perce War, time.event.locations, Montana
GEOnet feature ID, type.property.schema, Location
Montana, location.location.events, Crow War
Miranda, book.written_work.subjects, Montana
Montana, book.book_subject.works, Bitterroot
North America, freebase.valuenotation.is_reviewed, Time zone(s)
m.0wg90jv, location.partial_containment_relationship.partially_contained_by, Montana
Montana, location.statistical_region.religions, m.04404_c
Yellowstone River, location.location.partially_contained_by, m.0wg90km
Contained by, type.property.expected_type, Location
Location, type.type.properties, Nearby airports
Colter, book.written_work.subjects, Montana
Montana, location.location.partiallycontains, m.0wg90ks
Centennial Mountains, location.location.contains, Mount Jefferson
Kootenay River, location.location.partially_containedby, United States of America
Swan Peak, book.written_work.subjects, Montana
Little Missouri River, location.location.containedby, North America
Contains major portion of, rdf-schema#range, Location
Adjectival form, rdf-schema#domain, Location
Hayfield Fight, time.event.locations, Montana
m.0wg90ky, location.partial_containment_relationship.partially_contained_by, Montana
The Hope Within, book.written_work.subjects, Montana
Flathead County, location.location.containedby, Montana
Helena, location.location.time_zones, Mountain Time Zone
Topic, freebase.type_profile.kind, Meta
m.02tgknw, location.adjoining_relationship.adjoins, Montana
Tongue River, location.location.containedby, United States of America
Area, type.property.schema, Location
Contains, type.property.reverse_property, Contained by
Contiguous United States, common.topic.notable_types, Location
Montana, book.book_subject.works, Shifting Calder wind
Montana, location.statistical_region.religions, m.0440623
Powder River, location.location.partially_contained_by, m.0wg90ky
Montana, location.location.events, Montana Absentee Ballot Return Deadline, 2012
m.0wjplp0, location.partial_containment_relationship.partially_contained_by, Montana
Powder River, location.location.containedby, United States of America
Clarks Fork Yellowstone River, location.location.partially_contained_by, m.0wg90ks
Kootenay River, location.location.partially_contained_by, m.0wg90lq
Montana, book.book_subject.works, Billionaire boss
Montana, book.book_subject.works, Homestead
Lovers & dreamers, book.written_work.subjects, Montana
Location, freebase.equivalent_topic.equivalent_type, Location
Mount Jefferson, location.location.containedby, Centennial Mountains
Helena, location.location.containedby, Montana
m.0wg90kg, location.partial_containment_relationship.partially_contains, Gallatin River
Contains major portion of, type.property.schema, Location
Lewis and Clark County, location.location.containedby, Montana
shape, type.property.schema, Location
Montana, book.book_subject.works, The Clayborne brides
Location, type.type.properties, People born here
Montana, location.location.events, 2007 Montana Math Film Festival
Geolocation, type.property.schema, Location
Montana, base.folklore.mythical_creature_location.mythical_creature_s, Fur-bearing trout
Madison River, location.location.containedby, North America
Montana, book.book_subject.works, Platte River
Montana, book.book_subject.works, Prairie Nocturne
m.04lsvcx, common.webpage.topic, Montana
Missouri River, location.location.partially_containedby, Montana
Time zone(s), rdf-schema#domain, Location
Montana, location.statistical_region.religions, m.04405fy
Montana, location.location.partiallycontains, m.0wg90ld
Montana, book.book_subject.works, The Loner
Location, type.type.domain, Location
Montana, book.book_subject.works, Springwater
Morning Comes Softly, book.written_work.subjects, Montana
Mount Jefferson, location.location.partially_contained_by, m.0wg90k4
Montana, location.statistical_region.religions, m.04405zp
Montana, book.book_subject.works, Nothing but blue skies
Location, type.type.properties, Partially contains
Montana, location.location.partiallycontains, m.0wg90k4
Montana, book.book_subject.works, On the night plain
m.0wg90l7, location.partial_containment_relationship.partially_contains, Madison River
USBG name, type.property.schema, Location
The Loner, book.written_work.subjects, Montana
Clark Fork River, location.location.containedby, United States of America
Centennial Mountains, common.topic.article, m.0b6fb10
Montana, book.book_subject.works, Heart Earth
Montana, location.location.partially_contains, Clark Fork River
Location, type.type.properties, USBG name
Montana, book.book_subject.works, Flying U Ranch
Montana, book.book_subject.works, Miranda
Montana, book.book_subject.works, Lovers & dreamers
Contiguous United States, location.location.containedby, United States of America
shape, rdf-schema#domain, Location
m.02tg7yk, location.adjoining_relationship.adjoins, Montana
Montana, location.statistical_region.religions, m.044054d
Location, freebase.equivalent_topic.equivalent_domain, Location
Montana, book.book_subject.works, Why I Came West
Montana, location.location.partiallycontains, m.0wg90km
Partially contained by, type.property.expected_type, Location
US State, type.type.domain, Location
m.0wg90j_, location.partial_containment_relationship.partially_contained_by, Montana
Madison River, location.location.partially_contained_by, m.0wg90l7
The Clayborne brides, book.written_work.subjects, Montana
Montana, location.location.partiallycontains, m.0wg90l2

Answer: Mississippi River