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 is the beginning of the river that flows under the Burlington Northern Railroad Bridge 9.6? 
Knowledge Triplets: Woodlawn, location.location.containedby, Portland
Glenn L. Jackson Memorial Bridge, common.topic.notable_types, Bridge
Hillside, location.location.containedby, Portland
Columbia River, geography.river.cities, Vancouver
m.09y23zk, common.webpage.topic, Columbia River
Portland, common.topic.webpage, m.09x4kcs
97238, location.postal_code.country, United States of America
Columbia River, location.location.events, Robert Gray's Columbia River expedition
97214, location.postal_code.country, United States of America
97299, location.postal_code.country, United States of America
Total Length, type.property.schema, Bridge
Bridge, type.type.expected_by, Bridges of this type
97290, location.postal_code.country, United States of America
Portland, location.location.containedby, United States of America
River, freebase.type_hints.included_types, Topic
97269, location.postal_code.country, United States of America
Piedmont, location.location.containedby, Portland
Columbia River, geography.river.origin_long_lat, m.04d0j_1
Centennial, location.location.containedby, Portland
m.0b496y2, common.webpage.topic, Portland
97211, location.location.containedby, United States of America
Oregon Electric Railway Museum, travel.tourist_attraction.near_travel_destination, Portland
97225, location.postal_code.country, United States of America
Columbia River, common.topic.image, Columbia
Columbia River, geography.river.cities, Revelstoke
97217, location.postal_code.country, United States of America
Boise, location.location.containedby, Portland
Columbia River, location.location.partially_containedby, United States of America
Columbia River, common.topic.notable_for, g.1258h35ws
Locale, rdf-schema#range, Location
Far Southwest, location.location.containedby, Portland
United States of America, location.location.partially_containedby, North America
Brooklyn, location.location.containedby, Portland
97242, location.postal_code.country, United States of America
Double-Span Metal Pratt Truss Bridge, architecture.structure.architectural_style, Truss bridge
Bridge Type, owl#inverseOf, Bridges of this type
North America, location.location.contains_major_portion_of, United States of America
South Burlingame, location.location.containedby, Portland
Columbia River, common.topic.image, Corps-engineers-archives bonneville dam looking east
Layton Bridge, common.topic.notable_types, Bridge
Truss bridge, architecture.architectural_style.examples, Root Covered Bridge
Truss bridge, architecture.architectural_style.examples, Layton Bridge
Burlington Northern Railroad Bridge 9.6, transportation.bridge.bridge_type, Swing bridge
97202, location.postal_code.country, United States of America
m.09wwkjy, common.webpage.topic, Portland
United States of America, location.location.primarily_containedby, North America
Bridge, type.type.properties, Number of spans
97202, location.location.containedby, Oregon
Argay, location.location.containedby, Portland
East Columbia, location.location.containedby, Portland
Bridges, type.property.expected_type, Bridge
British Columbia, location.location.partiallycontains, m.0wg96gx
Bridge, freebase.type_profile.equivalent_topic, Bridge
Columbia River, geography.body_of_water.bridges, Columbia River Bridge
Bridge, freebase.type_hints.included_types, Topic
Skamania County, location.location.partially_contains, Columbia River
Oregon, location.location.containedby, United States of America
Columbia River, geography.body_of_water.bridges, Hood River Bridge
97266, location.location.containedby, United States of America
Kerns, location.location.containedby, Portland
Burlington Northern Railroad Bridge 9.6, common.topic.notable_types, Bridge
Portland, common.topic.webpage, m.09ykkhl
United States of America, location.location.partiallycontains, m.0wg940_
Burlington Northern Railroad Bridge 9.6, common.topic.article, m.02rsg8f
97207, location.postal_code.country, United States of America
North America, location.location.partially_contains, United States of America
Truss bridge, architecture.architectural_style.examples, Hayden Bridge
97206, location.postal_code.country, United States of America
Washington, location.location.containedby, United States of America
Eliot, location.location.containedby, Oregon
Columbia River, geography.body_of_water.bridges, Vantage Bridge
97224, location.postal_code.country, United States of America
Kenton, location.location.containedby, Oregon
97223, location.location.containedby, Washington County
97227, location.postal_code.country, United States of America
97230, location.location.containedby, United States of America
97204, location.location.contains, Pioneer Courthouse Square
97215, location.postal_code.country, United States of America
97220, location.location.containedby, United States of America
97224, location.location.containedby, Washington County
Swing bridge, common.topic.notable_types, Bridge Type
Interstate Bridge, location.location.containedby, Portland
South Burlingame, location.location.containedby, Oregon
Portland, common.topic.image, Portland panorama3
Swing bridge, common.topic.notable_for, g.1258dt_33
97201, location.postal_code.country, United States of America
97228, location.postal_code.country, United States of America
Washington, base.biblioness.bibs_location.country, United States of America
97203, location.postal_code.country, United States of America
Locale, type.property.expected_type, Location
Body Of Water Spanned, rdf-schema#domain, Bridge
m.07ndqm6, base.ontologies.ontology_instance_mapping.freebase_topic, Columbia River
Truss bridge, architecture.architectural_style.examples, Prairie Dog Creek Bridge
Portland, common.topic.webpage, m.09xk6v8
Columbia River, location.location.partially_containedby, Canada
Columbia River, geography.body_of_water.bridges, Interstate Bridge
m.09xk6v8, common.webpage.topic, Portland
Bridge Type, rdf-schema#domain, Bridge
97201, location.location.containedby, United States of America
m.09xrtxt, common.webpage.topic, Portland
m.09wl4sx, common.webpage.topic, Columbia River
Portland, common.topic.webpage, m.09wjysr
Layton Bridge, architecture.structure.architectural_style, Truss bridge
Brooklyn, location.location.containedby, Oregon
97202-2232, location.location.containedby, Oregon
Russell, location.location.containedby, Portland
Locale, type.property.schema, Bridge
Bridge, type.type.properties, Body Of Water Spanned
Columbia River, location.location.contains, Astoria Wharf and Warehouse Company
Longview, location.location.containedby, United States of America
Pioneer Courthouse Square, location.location.containedby, 97204
Columbia River, geography.body_of_water.bridges, Astoria–Megler Bridge
Jackson Branch Bridge No. 15, common.topic.notable_types, Structure
RiverPlace Hotel Portland, a Kimpton Hotel, common.topic.subjects, Portland
Arnold Creek, location.location.containedby, Portland
River, freebase.type_profile.kind, Definition
Columbia River, geography.body_of_water.bridges, Oregon Trunk Rail Bridge
Truss bridge, architecture.architectural_style.examples, West Antelope Bridge
Columbia River, geography.body_of_water.bridges, Burlington Northern Railroad Bridge 9.6
Columbia River, location.location.partially_contained_by, m.0wg940_
Body Of Water Spanned, type.property.schema, Bridge
Portland, common.topic.webpage, m.09xv56_
Columbia River, location.location.containedby, North America
Portland, common.topic.webpage, m.09w8yb5
Truss bridge, base.schemastaging.context_name.pronunciation, g.125_kmc5p
River, freebase.type_profile.strict_included_types, Topic
Foster-Powell, location.location.containedby, Portland
Vernon, location.location.containedby, Portland
Columbia River, geography.river.cities, Tri-Cities
Prairie Dog Creek Bridge, architecture.structure.architectural_style, Truss bridge
Portland, common.topic.subject_of, Adam Greenman Law
Arlington Heights, location.location.containedby, Portland
Bridges, rdf-schema#range, Bridge
97298, location.postal_code.country, United States of America
Columbia River, geography.body_of_water.bridges, Kettle Falls Bridges
Root Covered Bridge, architecture.structure.architectural_style, Truss bridge
Canada, location.location.containedby, North America
River, freebase.type_profile.strict_included_types, Location
Portland, common.topic.webpage, m.0b6s2z1
Truss bridge, common.topic.article, m.03ms9w
Vancouver, location.location.containedby, United States of America
97210, location.location.containedby, United States of America
British Columbia, location.location.partially_contains, Columbia River
Bridge, type.type.properties, Clearance Below
Columbia River, common.topic.webpage, m.09wl4sx
Swing bridge, common.topic.image, MovableBridge swing
Center, location.location.containedby, Portland
Columbia River, geography.body_of_water.bridges, Beebe Bridge
97206, location.location.containedby, United States of America
Downtown Portland, location.location.contains, RiverPlace
Ardenwald-Johnson Creek, location.location.containedby, Oregon
Columbia River, location.location.partially_containedby, Washington
97239, location.postal_code.country, United States of America
m.0wg96gx, location.partial_containment_relationship.partially_contains, Columbia River
Columbia River, geography.body_of_water.bridges, Bridge of the Gods
97208, location.postal_code.country, United States of America
97210, location.postal_code.country, United States of America
Vancouver, location.location.contains, Interstate Bridge
Northwest Industrial, location.location.containedby, Portland
Markham, location.location.containedby, Oregon
Burlington Northern Railroad Bridge 9.6, common.topic.notable_for, g.1259gd6x4
Structure, freebase.type_hints.included_types, Location
Far Southwest, location.location.containedby, Oregon
Interstate Bridge, location.location.containedby, Washington
Portland, common.topic.webpage, m.09xjy2c
Columbia River, geography.river.origin, Columbia Lake
Truss bridge, architecture.architectural_style.examples, Double-Span Metal Pratt Truss Bridge
m.052mw6_, travel.transportation.travel_destination, Portland
Revelstoke, location.location.containedby, British Columbia
Bridge, freebase.type_profile.published, Published
Columbia River, geography.body_of_water.bridges, Blue Bridge
97268, location.postal_code.country, United States of America
Columbia River, symbols.namesake.named_after, Columbia Rediviva
Glenn L. Jackson Memorial Bridge, location.location.containedby, United States of America
Bridge, freebase.type_profile.strict_included_types, Location
Locale, rdf-schema#domain, Bridge
Crestwood, location.location.containedby, Portland
Bridge, type.type.properties, Total Length
Columbia River, common.topic.notable_types, River
Bridge, freebase.type_profile.strict_included_types, Topic
97202-2232, location.postal_code.country, United States of America
Columbia River, geography.body_of_water.bridges, Rock Island Railroad Bridge
Columbia River, geography.body_of_water.bridges, Glenn L. Jackson Memorial Bridge
Columbia River, geography.body_of_water.bridges, Lewis and Clark Bridge
Columbia River, geography.river.cities, Portland
97204, location.postal_code.country, United States of America
97205, location.location.contains, Oregon Historical Society Museum
Bridge Type, type.property.reverse_property, Bridges of this type
Portland, common.topic.webpage, m.0b496y2
Bridge, type.type.properties, Longest Span
97236, location.postal_code.country, United States of America
Bridge, type.type.properties, Width
Oregon, location.location.partially_contains, Columbia River
Beverly Railroad Bridge, common.topic.notable_types, Bridge
Jackson Branch Bridge No. 15, architecture.structure.architectural_style, Truss bridge
Clearance Below, type.property.schema, Bridge
Madison South, location.location.containedby, Oregon
Vancouver, base.biblioness.bibs_location.state, Washington
97233, location.location.containedby, United States of America
97211, location.postal_code.country, United States of America
Truss bridge, architecture.architectural_style.examples, Knife River Bridge near Stanton
Columbia River, geography.body_of_water.bridges, Julia Butler Hansen Bridge
m.052mw6r, travel.transportation.travel_destination, Portland
97286, location.postal_code.country, United States of America
Portland, common.topic.webpage, m.09wl9sj
Location, freebase.type_hints.included_types, Topic
97280, location.postal_code.country, United States of America
97217, location.location.containedby, United States of America
British Columbia, location.location.containedby, Canada
Concordia, location.location.containedby, Portland
97214, location.location.containedby, United States of America
Glenn L. Jackson Memorial Bridge, transportation.bridge.locale, Portland
Topic, freebase.type_profile.published, Published
m.0wg98gw, location.partial_containment_relationship.partially_contained_by, Oregon
Healy Heights, location.location.containedby, Portland
Bridge, freebase.type_profile.strict_included_types, Structure
Columbia River, location.location.partially_contained_by, m.0wg98gw
Arnold Creek, location.location.containedby, Oregon
Lents, location.location.containedby, Portland
Skamania County, location.location.contains, Bridge of the Gods
97218, location.location.containedby, United States of America
Robert Gray's Columbia River expedition, time.event.locations, North America
Truss bridge, common.topic.notable_for, g.1254z5q9_
Bridge, freebase.type_hints.included_types, Structure
Wilkes, location.location.containedby, Portland
Beverly Railroad Bridge, transportation.bridge.body_of_water_spanned, Columbia River
Portland, common.topic.webpage, m.0b47hwd
97204, location.location.contains, Portland Building
Columbia River, common.topic.article, m.01n8h
Overlook, location.location.containedby, Oregon
Montavilla, location.location.containedby, Portland
Dey Road Bridge, common.topic.notable_types, Bridge
Bridge, type.type.domain, Transportation
m.0wg98gw, location.partial_containment_relationship.partially_contains, Columbia River
Oregon, location.location.partiallycontains, m.0wg98gw
m.0wg97t3, location.partial_containment_relationship.partially_contains, Columbia River
Beverly Railroad Bridge, location.location.containedby, Washington
British Columbia, base.biblioness.bibs_location.country, Canada
97202, location.location.containedby, United States of America
Woodstock, location.location.containedby, Oregon
m.0wg940_, location.partial_containment_relationship.partially_contains, Columbia River
97229, location.location.containedby, Washington County
97232, location.location.containedby, United States of America
Columbia River, location.location.partially_contained_by, m.0wg97t3
Swing bridge, common.topic.article, m.02gr53
Portland, common.topic.article, m.05vvp
m.052my8r, common.webpage.topic, Portland
97219, location.postal_code.country, United States of America
Linnton, location.location.containedby, Portland
97282, location.postal_code.country, United States of America
South Tabor, location.location.containedby, Portland
Portland, common.topic.webpage, m.09xvsb5
97232, location.postal_code.country, United States of America
97212, location.postal_code.country, United States of America
Bridges, owl#inverseOf, Body Of Water Spanned
97201, location.location.contains, Tom McCall Waterfront Park
Burlington Northern Railroad Bridge 9.6, common.topic.image, Burlington Northern Railroad Bridge 9
Portsmouth, location.location.containedby, Oregon
97258, location.postal_code.country, United States of America
Sunderland, location.location.containedby, Portland
m.0wg9481, location.partial_containment_relationship.partially_contains, Columbia River
Columbia River, location.location.partially_containedby, British Columbia
Columbia River, location.location.partially_contained_by, m.0wg96x5
Glenfair, location.location.containedby, Portland
Richmond, location.location.containedby, Oregon
97220, location.postal_code.country, United States of America
Truss bridge, architecture.architectural_style.examples, Dey Road Bridge
97283, location.postal_code.country, United States of America
Body Of Water Spanned, type.property.master_property, Bridges
m.09yvx65, common.webpage.topic, Portland
m.0wg9481, location.partial_containment_relationship.partially_contained_by, Canada
Columbia River, geography.body_of_water.bridges, Umatilla Bridge
Bridge, common.topic.article, m.03bqfkm
Burlington Northern Railroad Bridge 9.6, transportation.bridge.bridge_type, Truss bridge
Portland, common.topic.notable_for, g.1256fn5ws
97213, location.location.containedby, United States of America
Portland, common.topic.webpage, m.09wm284
Glenn L. Jackson Memorial Bridge, transportation.bridge.body_of_water_spanned, Columbia River
Portland, common.topic.webpage, m.09yvx65
97219, location.location.containedby, United States of America
m.0wg940_, location.partial_containment_relationship.partially_contained_by, United States of America
Columbia River, common.topic.webpage, m.09y23zk
Reed, location.location.containedby, Portland
Columbia River, geography.body_of_water.bridges, Senator George Sellar Bridge
97204, location.location.contains, Mark O. Hatfield United States Courthouse
Vancouver, location.location.containedby, Washington
Vancouver, base.biblioness.bibs_location.country, United States of America
Bridge, freebase.type_hints.included_types, Location
m.0b46w4j, common.webpage.topic, Portland
Wilson Pratt Truss Bridge, common.topic.notable_types, Bridge
97223, location.postal_code.country, United States of America
Stony Creek Bridge, architecture.structure.architectural_style, Truss bridge
97240, location.postal_code.country, United States of America
Columbia River, travel.travel_destination.tourist_attractions, Columbia River Gorge
Columbia Lake, location.location.containedby, Canada
97210, location.location.contains, Willamette Stone
Bridge Type, rdf-schema#range, Bridge Type
Portland Building, location.location.containedby, 97204
Skamania County, location.location.contains, Columbia River Gorge
m.09wm284, common.webpage.topic, Portland
m.09xv56_, common.webpage.topic, Portland
Total Length, rdf-schema#domain, Bridge
Cully, location.location.containedby, Portland
Burlington Northern Railroad Bridge 9, common.image.appears_in_topic_gallery, Burlington Northern Railroad Bridge 9.6
97205, location.location.containedby, United States of America
97202-2232, location.location.containedby, United States of America
m.0wg96x5, location.partial_containment_relationship.partially_contained_by, Washington
97204, location.location.containedby, United States of America
Sumner, location.location.containedby, Portland
Sunderland, location.location.containedby, Oregon
Oregon, location.administrative_division.country, United States of America
Washington, location.location.partially_contains, Columbia River
Portland, location.location.adjoin_s, m.049x8l2
Vancouver, location.location.adjoin_s, m.049x8l2
Interstate Bridge, transportation.bridge.body_of_water_spanned, Columbia River
Northwest Heights, location.location.containedby, Portland
m.09ykkhl, common.webpage.topic, Portland
Columbia River Gorge, film.film_location.featured_in_films, Twilight
Columbia River, location.location.partially_contained_by, m.0wg9481
Woodstock, location.location.containedby, Portland
Columbia River, geography.river.mouth, Clatsop County
Overlook, location.location.containedby, Portland
Columbia River, geography.river.mouth, Pacific Ocean
Interstate Bridge, transportation.bridge.bridge_type, Truss bridge
97202-2232, location.location.containedby, 97202
Washington, location.administrative_division.country, United States of America
United States of America, location.country.administrative_divisions, Washington
Canada, location.country.first_level_divisions, British Columbia
Truss bridge, architecture.architectural_style.examples, Parker Road-Charlotte River Bridge
Parker Road-Charlotte River Bridge, common.topic.notable_types, Bridge
Irvington, location.location.containedby, Portland
Canada, location.location.partially_contains, Columbia River
97292, location.postal_code.country, United States of America
Columbia River, geography.body_of_water.bridges, Beverly Railroad Bridge
Twilight, film.film.featured_film_locations, Columbia River Gorge
m.09x63m7, common.webpage.topic, Portland
Waltz Road-Huron River Bridge, architecture.structure.architectural_style, Truss bridge
m.09xjy2c, common.webpage.topic, Portland
97294, location.postal_code.country, United States of America
Ardenwald-Johnson Creek, location.location.containedby, Portland
Roseway, location.location.containedby, Portland
97209, location.location.containedby, United States of America
RiverPlace, location.location.containedby, Downtown Portland
Columbia River, location.location.partially_contained_by, m.0wg96gx
97202, location.location.containedby, Portland
m.0wg96gx, location.partial_containment_relationship.partially_contained_by, British Columbia
Southwest Hills, location.location.containedby, Portland
Lents, location.location.containedby, Oregon
British Columbia, location.administrative_division.country, Canada
97221, location.location.containedby, United States of America
Homestead, location.location.containedby, Portland
East Columbia, location.location.containedby, Oregon
Canada, location.country.administrative_divisions, British Columbia
Bridges, type.property.reverse_property, Body Of Water Spanned
Burlington Northern Railroad Bridge 9.6, transportation.bridge.locale, Portland
Truss bridge, architecture.architectural_style.examples, South Dakota Department of Transportation Bridge No. 02-007-220
Interstate Bridge, common.topic.notable_types, Bridge
97202-2232, location.location.containedby, Portland
Columbia Lake, location.location.containedby, British Columbia
97231, location.location.containedby, United States of America
97215, location.location.containedby, United States of America
Columbia River, geography.body_of_water.bridges, The Dalles Bridge
97225, location.location.containedby, Washington County
97266, location.postal_code.country, United States of America
m.09wjysr, common.webpage.topic, Portland
Eliot, location.location.containedby, Portland
River, freebase.type_hints.included_types, Location
Columbia River, geography.lake.outflow, Columbia Lake
Portland, common.topic.webpage, m.0b46w4j
Truss bridge, common.topic.notable_types, Bridge Type
m.0wg96x5, location.partial_containment_relationship.partially_contains, Columbia River
Columbia River, geography.body_of_water.bridges, Sam Hill Memorial Bridge
Longview, location.location.contains, Lewis and Clark Bridge
Northwest District, location.location.containedby, Portland
97227, location.location.containedby, United States of America
Bridge, type.type.properties, Locale
m.09yqqz_, common.webpage.topic, Portland
Truss bridge, architecture.architectural_style.examples, Hanover Bridge
Truss bridge, architecture.architectural_style.examples, Dodd Ford Bridge
97205, location.postal_code.country, United States of America
Portland, common.topic.webpage, m.052my8r
Interstate Bridge, location.location.containedby, Vancouver
Double-Span Metal Pratt Truss Bridge, common.topic.notable_types, Bridge
Canada, location.location.partiallycontains, m.0wg9481
Washington, location.location.partiallycontains, m.0wg96x5
Bridge, type.type.properties, Bridge Type
King, location.location.containedby, Portland
Truss bridge, architecture.architectural_style.examples, Old Benton-Sardis Road Bridge
97291, location.postal_code.country, United States of America
Clearance Below, rdf-schema#domain, Bridge
m.09yv446, common.webpage.topic, Portland
97296, location.postal_code.country, United States of America
Columbia River, location.location.partially_containedby, Skamania County
Markham, location.location.containedby, Portland
River, freebase.type_profile.published, Published
m.03l9f4k, common.webpage.topic, Portland
Swing bridge, base.onephylogeny.type_of_thing.things_of_this_type, Abtsewoudsebrug
Columbia River, location.location.partially_containedby, Oregon
Portland, common.topic.webpage, m.09yqqz_
m.09wl9sj, common.webpage.topic, Portland
m.09x4kcs, common.webpage.topic, Portland
Bridge Type, type.property.schema, Bridge
Burlington Northern Railroad Bridge 9.6, geography.body_of_water.bridges, Columbia River
97229, location.postal_code.country, United States of America
Portland, common.topic.webpage, m.09wwkjy
Portland, common.topic.webpage, m.09yb8nt
Columbia River, geography.body_of_water.bridges, Vernita Bridge
97256, location.postal_code.country, United States of America
Truss bridge, architecture.architectural_style.examples, Jackson Branch Bridge No. 15
97218, location.postal_code.country, United States of America
RiverPlace, location.neighborhood.neighborhood_of, Portland
m.049x8l2, location.adjoining_relationship.adjoins, Portland
97216, location.postal_code.country, United States of America
Columbia Lake, geography.lake.outflow, Columbia River
Columbia River, base.ontologies.ontology_instance.equivalent_instances, m.07ndqm6
Portland, common.topic.image, TE-Collage Portland
Columbia River, geography.body_of_water.bridges, Grand Coulee Bridge
Dey Road Bridge, architecture.structure.architectural_style, Truss bridge
Truss bridge, architecture.architectural_style.examples, Lilley Road–Lower Rouge River Bridge
Wilson Pratt Truss Bridge, architecture.structure.architectural_style, Truss bridge
97281, location.postal_code.country, United States of America
Portland, common.topic.webpage, m.03l9f4k
Truss bridge, architecture.architectural_style.examples, Stony Creek Bridge
Columbia River, geography.body_of_water.bridges, Cable Bridge
Portland, common.topic.webpage, m.09yv446
Longview, location.location.containedby, Washington
m.09yb8nt, common.webpage.topic, Portland
97293, location.postal_code.country, United States of America
Columbia River, geography.body_of_water.bridges, Interstate 182 Bridge
Revelstoke, location.location.containedby, Canada
97221, location.postal_code.country, United States of America
Vernon, location.location.containedby, Oregon
97212, location.location.containedby, United States of America
97216, location.location.containedby, United States of America
Columbia River, location.location.geolocation, m.05khtrh
Parker Road-Charlotte River Bridge, architecture.structure.architectural_style, Truss bridge
97236, location.location.containedby, United States of America
Kenton, location.location.containedby, Portland
97230, location.postal_code.country, United States of America
Beverly Railroad Bridge, transportation.bridge.bridge_type, Truss bridge
Robert Gray's Columbia River expedition, time.event.locations, Columbia River
Structure, freebase.type_profile.published, Published
Bridge Type, type.property.expected_type, Bridge Type
Columbia River, geography.body_of_water.bridges, Pasco–Kennewick Bridge
m.09xvsb5, common.webpage.topic, Portland
Interstate Bridge, transportation.bridge.locale, Portland
Waltz Road-Huron River Bridge, common.topic.notable_types, Bridge
Oregon, base.biblioness.bibs_location.country, United States of America
97213, location.postal_code.country, United States of America
Prairie Dog Creek Bridge, common.topic.notable_types, Bridge
97209, location.postal_code.country, United States of America
97231, location.postal_code.country, United States of America
Columbia River Gorge, location.location.containedby, Skamania County
m.0b6s2z1, common.webpage.topic, Portland
Burlington Northern Railroad Bridge 9.6, transportation.bridge.body_of_water_spanned, Columbia River
m.0b47hwd, common.webpage.topic, Portland
m.052mw6h, travel.transportation.travel_destination, Portland
Humboldt, location.location.containedby, Oregon
97267, location.postal_code.country, United States of America
Zero Effect, film.film.country, United States of America
97233, location.postal_code.country, United States of America
Layton Bridge, transportation.bridge.bridge_type, Truss bridge
338163822_48a56474b3.jpg, common.image.appears_in_topic_gallery, Portland
Sabin, location.location.containedby, Portland
Location, freebase.type_profile.published, Published
United States of America, location.location.partially_contains, Columbia River
97203, location.location.containedby, United States of America
Willamette Stone, location.location.containedby, 97210
Truss bridge, architecture.architectural_style.examples, Wilson Pratt Truss Bridge
Portsmouth, location.location.containedby, Portland
97202, location.location.contains, 97202-2232
Madison South, location.location.containedby, Portland
Swing bridge, base.onephylogeny.type_of_thing.things_of_this_type, Montrose Swing Bridge
Bridge, freebase.type_profile.kind, Definition
Portland, travel.travel_destination.tourist_attractions, Oregon Electric Railway Museum
Columbia River Gorge, travel.tourist_attraction.near_travel_destination, Columbia River
Burlington Northern Railroad Bridge 9, common.image.size, m.07b7nrn
Humboldt, location.location.containedby, Portland
Root Covered Bridge, common.topic.notable_types, Bridge
97222, location.postal_code.country, United States of America
Burlington Northern Railroad Bridge 9.6, location.location.geolocation, m.0wm9x10
97220, location.location.contains, The Grotto
Portland, common.topic.webpage, m.09x63m7
Stony Creek Bridge, common.topic.notable_types, Bridge
Portland, common.topic.webpage, m.09xrtxt
Richmond, location.location.containedby, Portland
Collins View, location.location.containedby, Portland
Truss bridge, architecture.architectural_style.examples, Waltz Road-Huron River Bridge
m.049x8l2, location.adjoining_relationship.adjoins, Vancouver
Columbia River, geography.river.cities, Longview
Bridge, type.type.expected_by, Bridges
Portland, common.topic.image, 338163822_48a56474b3.jpg
m.09w8yb5, common.webpage.topic, Portland

Answer: Columbia Lake