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: The body of water that flows underneath the Bethanga Bridge is located where? 
Knowledge Triplets: River, freebase.type_profile.kind, Definition
Murray River, location.location.adjoin_s, m.047kv16
Wodonga, location.location.containedby, Victoria
Bethanga Bridge, transportation.bridge.body_of_water_spanned, Murray River
City/Town/Village, freebase.type_hints.included_types, Topic
Berri, travel.travel_destination.tourist_attractions, Murray River
Bethanga Bridge, common.topic.notable_for, g.11b75lnpz_
Bridge, freebase.type_profile.strict_included_types, Location
Total Length, type.property.schema, Bridge
Bellbridge, common.topic.notable_types, City/Town/Village
Bellbridge, common.topic.image, BethangaBridgeHumeDamMurrayRiver
Murray River, location.location.containedby, Australia
Bellbridge, common.topic.article, m.07gypx
Body Of Water Spanned, type.property.master_property, Bridges
Echuca, common.topic.notable_types, City/Town/Village
Bethanga Bridge, location.location.geolocation, m.011t4v4j
Murray River, geography.body_of_water.bridges, Bethanga Bridge
Locale, type.property.expected_type, Location
Abbotsford Bridge, transportation.bridge.body_of_water_spanned, Murray River
River, freebase.type_profile.strict_included_types, Topic
Locale, rdf-schema#range, Location
River, freebase.type_profile.strict_included_types, Location
Total Length, rdf-schema#domain, Bridge
Murray River, geography.river.mouth, Murray Mouth
Murray River, location.location.containedby, Australian Continent
Location, freebase.type_hints.included_types, Topic
Echuca, location.location.containedby, Victoria
Bridge Type, rdf-schema#domain, Bridge
Topic, freebase.type_profile.published, Published
Echuca, location.location.containedby, Australia
Swanport Bridge, transportation.bridge.locale, Murray Bridge
Victoria, location.location.containedby, Australia
River, freebase.type_hints.included_types, Location
Bridge, type.type.properties, Locale
Bellbridge, common.topic.image, Bellbridge 2010
Bridge, type.type.properties, Number of spans
Bridges, type.property.reverse_property, Body Of Water Spanned
Murray River, geography.river.cities, Echuca
Murray River, common.topic.notable_types, River
Swan Hill, location.location.containedby, Australia
Bridge, type.type.properties, Clearance Below
Bridge, freebase.type_profile.equivalent_topic, Bridge
Berri, location.location.containedby, Australia
Albury, location.location.containedby, Australia
Berri, common.topic.notable_types, City/Town/Village
Mildura, location.location.adjoin_s, m.047kv16
Bridges, owl#inverseOf, Body Of Water Spanned
Murray River, common.topic.article, m.04_4v
Locale, rdf-schema#domain, Bridge
Bridge, type.type.properties, Longest Span
Mildura, location.location.containedby, Victoria
Murray River, geography.river.cities, Albury
Bellbridge, location.location.containedby, Australia
Bridge, type.type.expected_by, Bridges of this type
Murray River, geography.river.cities, Renmark
Murray River, common.image.appears_in_topic_gallery, Murray River
Bridge, freebase.type_profile.strict_included_types, Topic
Location, freebase.type_profile.published, Published
m.047kv16, location.adjoining_relationship.adjoins, Mildura
Abbotsford Bridge, common.topic.notable_types, Bridge
Murray River, geography.body_of_water.bridges, Swanport Bridge
Bridge, freebase.type_hints.included_types, Structure
Albury, common.topic.notable_types, City/Town/Village
Murray Bridge, location.location.containedby, Australia
Murray River, common.topic.image, Murray darling murrumbidgee map
River, freebase.type_hints.included_types, Topic
Bethanga Bridge, transportation.bridge.body_of_water_spanned, Murray River
Wodonga, common.topic.notable_types, City/Town/Village
Swanport Bridge, common.topic.notable_types, Bridge
Renmark, common.topic.notable_types, City/Town/Village
Murray River, geography.river.mouth, Southern Ocean
Australia, base.aareas.schema.administrative_area.administrative_children, Victoria
Bridge Type, owl#inverseOf, Bridges of this type
Bethanga Bridge, transportation.bridge.locale, Bellbridge
Structure, freebase.type_profile.strict_included_types, Location
Victoria, location.administrative_division.country, Australia
Bethanga Bridge, common.topic.notable_types, Bridge
Australian Alps, location.location.containedby, Victoria
Mildura, common.topic.notable_types, City/Town/Village
Murray River, geography.river.cities, Murray Bridge
Bridge, freebase.type_hints.included_types, Location
Structure, freebase.type_profile.published, Published
Bridge, freebase.type_profile.kind, Definition
Bridge, type.type.domain, Transportation
City/Town/Village, freebase.type_hints.included_types, Location
George Murray, symbols.name_source.namesakes, Murray River
Bridge, freebase.type_hints.included_types, Topic
Murray River, symbols.namesake.named_after, George Murray
Bridge, freebase.type_profile.published, Published
Clearance Below, rdf-schema#domain, Bridge
River, freebase.type_profile.published, Published
Bridges, rdf-schema#range, Bridge
Body Of Water Spanned, rdf-schema#domain, Bridge
City/Town/Village, freebase.type_profile.strict_included_types, Location
Murray River, location.location.containedby, Australia
Bridge, type.type.properties, Bridge Type
Murray River, location.location.events, 1956 Murray River flood
Structure, freebase.type_hints.included_types, Location
Locale, type.property.schema, Bridge
City/Town/Village, freebase.type_profile.strict_included_types, Topic
Murray River, common.topic.notable_for, g.12550bdd2
Murray River, geography.river.cities, Swan Hill
m.047kv16, location.adjoining_relationship.adjoins, Murray River
Murray River, geography.river.cities, Mildura
Murray River, common.topic.image, Murray River
Swanport Bridge, transportation.bridge.body_of_water_spanned, Murray River
Murray darling murrumbidgee map, common.image.appears_in_topic_gallery, Murray River
Australia, location.location.containedby, Australian Continent
Bridge, type.type.expected_by, Bridges
Bridge, type.type.properties, Width
Swan Hill, location.location.containedby, Victoria
Body Of Water Spanned, type.property.schema, Bridge
Murray River, location.location.containedby, Australian Continent
Bridges, type.property.expected_type, Bridge
Bridge, type.type.properties, Body Of Water Spanned
Murray River, geography.body_of_water.bridges, Mulwala Bridge
Bridge Type, type.property.schema, Bridge
Swan Hill, common.topic.notable_types, City/Town/Village
Murray River, geography.river.origin, Australian Alps
Victoria, base.aareas.schema.administrative_area.administrative_parent, Australia
City/Town/Village, freebase.type_profile.kind, Definition
Bridge, freebase.type_profile.strict_included_types, Structure
Structure, freebase.type_profile.strict_included_types, Topic
Bellbridge, location.location.geolocation, m.063jj0k
Wodonga, location.location.containedby, Australia
Structure, freebase.type_hints.included_types, Topic
Bridge, type.type.properties, Total Length
Renmark, location.location.containedby, Australia
Mulwala Bridge, transportation.bridge.body_of_water_spanned, Murray River
Murray River, travel.tourist_attraction.near_travel_destination, Berri
Murray River, location.location.geolocation, m.0cm6gyc
Murray River, base.ontologies.ontology_instance.equivalent_instances, m.07nfcgv
Bridge Type, type.property.reverse_property, Bridges of this type
Bellbridge, location.location.containedby, Victoria
Murray River, geography.river.cities, Wodonga
Victoria, base.biblioness.bibs_location.country, Australia
Mildura, location.location.containedby, Australia
Australia, location.country.administrative_divisions, Victoria
MurrayBridgeMurrayRiver, common.image.appears_in_topic_gallery, Murray River
City/Town/Village, freebase.type_profile.published, Published
Bellbridge, location.location.containedby, Australia
Bellbridge, common.topic.notable_for, g.1259rwjxx
Mulwala Bridge, common.topic.notable_types, Bridge
Bridge, common.topic.article, m.03bqfkm
Murray River, geography.body_of_water.bridges, Abbotsford Bridge
Bethanga Bridge, transportation.bridge.locale, Bellbridge
Murray River, common.topic.image, MurrayBridgeMurrayRiver
Murray Bridge, common.topic.notable_types, City/Town/Village
m.07nfcgv, base.ontologies.ontology_instance_mapping.freebase_topic, Murray River
Bellbridge, common.topic.image, BellbridgeFromNSW
1956 Murray River flood, time.event.locations, Murray River
Clearance Below, type.property.schema, Bridge

Answer: Australian Continent
Australia