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: What activity has been a reoccuring event in San Diego since 1998? 
Knowledge Triplets: San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fsm
m.0b48v9_, common.webpage.topic, San Diego
Skyline of San Diego, California, common.image.size, m.02dtnqw
Point Loma, San Diego, common.topic.image, Pointloma2
m.0fpskt4, common.webpage.topic, U-T San Diego
San Diego, common.topic.webpage, m.09wytx8
San Diego, organization.organization_scope.organizations_with_this_scope, GTCbio
San Diego Zoo Safari Park, common.topic.image, Sign inside the park
U-T San Diego, book.periodical.first_issue_date, m.02npn05
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fdz
m.09xhjrs, common.webpage.topic, San Diego
Kearny Mesa, San Diego, common.topic.notable_for, g.125b2p9hn
San Diego Zoo Safari Park, zoos.zoo.exhibits, Tiger Territory
San Diego, common.topic.webpage, m.09yhfq0
92101, location.location.contains, Maritime Museum of San Diego
San Diego Zoo, common.topic.article, m.01v05p
m.09yhrjz, common.webpage.topic, San Diego
San Diego Zoo Safari Park, common.topic.notable_types, Zoo
m.0wg9gy0, location.partial_containment_relationship.partially_contains, San Diego
U-T San Diego, common.topic.webpage, m.0hzvw48
Old Town, San Diego, common.topic.notable_for, g.1ynl2qjjc
San Diego Trolley, common.topic.image, San Diego Trolley 1065
m.09yhcvs, common.webpage.topic, San Diego
San Diego, common.topic.webpage, m.09x43lf
m.09wg7q3, common.webpage.topic, San Diego
San Diego, common.topic.webpage, m.0b483s8
San Diego Zoo Safari Park, common.topic.notable_for, g.125bn8k3y
m.012nzvsq, location.partial_containment_relationship.partially_contains, San Diego–Tijuana
m.09yk7zf, common.webpage.topic, San Diego
San Diego, common.topic.webpage, m.09xhylb
San Diego, common.topic.webpage, m.09xvxlc
San Diego Fire-Rescue Department, organization.organization.place_founded, San Diego
San Diego Zoo, common.topic.notable_types, Zoo
San Diego, common.topic.webpage, m.09wg7q3
92127, location.location.containedby, San Diego
Andrew W. Garcia, common.topic.subjects, San Diego
San Diego Trolley, common.topic.article, m.0585b6
San Diego, location.hud_foreclosure_area.estimated_number_foreclosures, m.07hc_km
San Diego Reader, book.periodical.format, m.02np8pv
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Otter and Swamp Monkey Exhibit
San Diego County, business.competitive_space.company, m.0cn6mlg
m.03kwgtz, common.webpage.topic, U-T San Diego
m.09xty2d, common.webpage.topic, San Diego
San Diego, film.film_location.featured_in_films, Paranormal Activity
m.09y3sxx, common.webpage.topic, San Diego
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Tapir Exhibit
m.07w2r4z, base.newsevents.news_report.news_reporting_organisation, U-T San Diego
Old Town San Diego State Historic Park, location.location.time_zones, Pacific Time Zone
GTCbio, organization.organization.geographic_scope, San Diego
m.0wg9gxv, location.partial_containment_relationship.partially_contains, San Diego
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Gorilla Exhibit
San Diego CityBeat, book.newspaper.owner, Southland Publishing
San Diego County, location.location.events, 2012 Oceanside International Film Festival
SeaWorld San Diego, amusement_parks.park.rides, Journey to Atlantis
San Diego Zoo Safari Park, zoos.zoo.exhibits, Condor Ridge
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Scripps Aviary
San Diego Zoo, zoos.zoo.exhibits, Discovery Outpost Giant Tortoise Exhibit
U-T San Diego, common.topic.article, m.03_f0q
San Diego County, location.location.events, 2010 Oceanside International Film Festival
Rock 'n' Roll San Diego Marathon, travel.tourist_attraction.near_travel_destination, San Diego
SeaWorld San Diego, common.topic.image, Seaworld 2006
U-T San Diego, book.newspaper.headquarters, m.04ywqbz
San Diego Zoo Safari Park, zoos.zoo.memberships, Association of Zoos and Aquariums
The San Diego Door, common.topic.article, m.0cw829
San Diego Zoo Safari Park, common.topic.webpage, m.03lg557
Old Town San Diego State Historic Park, common.topic.image, Old Town San Diego 010
SD Montage, common.image.appears_in_topic_gallery, San Diego
Allied Gardens, San Diego, common.topic.notable_for, g.1259_1v_f
San Diego, common.topic.webpage, m.09yf5km
San Diego, common.topic.webpage, m.09yk7zf
San Diego CityBeat, book.periodical.frequency_or_issues_per_year, m.09s587h
San Diego, common.topic.webpage, m.03lc9j_
San Diego Zoo Safari Park, zoos.zoo.exhibits, Asian Savanna
U-T San Diego, book.periodical.format, m.02npbr5
SeaWorld San Diego, common.topic.webpage, m.03ljxgq
m.07w2r5t, base.newsevents.news_report.news_reporting_organisation, U-T San Diego
San Diego Trolley, common.topic.image, San Diego Trolley map
m.09yf5km, common.webpage.topic, San Diego
San Diego Zoo Safari Park, common.topic.webpage, m.0k3g7fv
SeaWorld San Diego, amusement_parks.park.rides, Shipwreck Rapids
San Diego Zoo, zoos.zoo.exhibits, Asian Passage Lion-Tailed Macaque Exhibit
Rebekah Del Rio, music.artist.origin, San Diego
m.0wg93kk, location.partial_containment_relationship.partially_contains, San Diego–Tijuana
SeaWorld San Diego, common.topic.notable_for, g.125g10xp5
San Diego Aviators, sports.sports_team.location, San Diego
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5g2c
m.03ldg3h, common.webpage.topic, San Diego Zoo
m.03lhgdm, common.webpage.topic, San Diego Reader
Old Town San Diego State Historic Park, common.topic.image, Old Town, San Diego
San Diego–Tijuana, common.topic.notable_for, g.1258gz0qz
m.09xrv2d, common.webpage.topic, San Diego
San Diego Zoo Safari Park, zoos.zoo.exhibits, Afican Woods
U-T San Diego, base.newsevents.news_reporting_organisation.news_reports, m.07w2r6m
Kearny Mesa, San Diego, common.topic.article, m.027_snk
San Diego Reader, book.periodical.first_issue_date, m.02nppwk
San Diego Zoo, zoos.zoo.exhibits, Discovery Outpost Children's Zoo
Point Loma, San Diego, common.topic.notable_for, g.1256dx7b9
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fsz
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fs8
San Diego, location.location.containedby, California
Rock 'n' Roll San Diego Marathon, common.topic.webpage, m.0gx6xyr
3043 San Diego, astronomy.astronomical_discovery.discoverer, Eleanor F. Helin
San Diego Zoo, zoos.zoo.exhibits, Outback Camel Exhibit
San Diego, travel.travel_destination.tourist_attractions, Rock 'n' Roll San Diego Marathon
SeaWorld San Diego, amusement_parks.park.rides, SkyTower
m.09yghyq, common.webpage.topic, San Diego
San Diego, common.topic.webpage, m.09y3sxx
San Diego CityBeat, book.newspaper.circulation_areas, California
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Hippo Exhibit
U-T San Diego, base.newsevents.news_reporting_organisation.news_reports, m.07w2r5t
Paranormal Activity, film.film.featured_film_locations, San Diego
m.0gw20lm, common.webpage.topic, San Diego Zoo Safari Park
San Diego, organization.organization_scope.organizations_with_this_scope, Synergy Insulation
San Diego, common.topic.webpage, m.09yhrjz
m.09x43lf, common.webpage.topic, San Diego
san diego.gif, common.image.appears_in_topic_gallery, San Diego Toreros
San Diego, location.location.containedby, 92101
San Diego Zoo, zoos.zoo.exhibits, Discovery Outpost Hummingbird House
Anametrix, organization.organization.place_founded, San Diego
SeaWorld San Diego, amusement_parks.park.rides, Riptide Rescue
San Diego, book.book_subject.works, Inside the Mind of Scott Peterson
San Diego Trolley, common.topic.notable_for, g.1259f0_m6
U-T San Diego, book.periodical.language, American English
m.0gk8rfq, common.webpage.topic, SeaWorld San Diego
3043 San Diego, common.topic.article, m.06vg58
Bay Park, San Diego, common.topic.notable_types, Location
San Diego, location.location.partially_contained_by, m.0wg9gy0
San Diego Daily Transcript, common.topic.notable_types, Newspaper
U-T San Diego, book.periodical.editorial_staff, m.0ldk_r1
San Diego, common.topic.notable_for, g.125bwrlpg
San Diego Downtown News, book.newspaper.circulation_areas, San Diego
San Diego, common.topic.article, m.071w1
San Diego, travel.travel_destination.tourist_attractions, Rock 'n' Roll San Diego Marathon
The San Diego skyline on March 31, 2007., common.image.appears_in_topic_gallery, San Diego
San Diego, government.governmental_jurisdiction.governing_officials, m.0101n4xx
m.07w2r4p, base.newsevents.news_report.news_reporting_organisation, U-T San Diego
San Diego Zoo Safari Park, zoos.zoo.exhibits, African Plains
Aquatica San Diego, organization.organization.phone_number, m.010956fl
San Diego Reader, book.newspaper.circulation_areas, San Diego
U-T San Diego, common.topic.notable_types, Newspaper
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Orangutan and Siamang Exhibit
San Diego County, location.location.events, San Diego County fire
Allied Gardens, San Diego, common.topic.article, m.0gnf2_
San Diego, government.governmental_jurisdiction.governing_officials, m.0101n4qf
m.09xsgx0, common.webpage.topic, San Diego
San Diego Reader, common.topic.article, m.0bkccm
San Diego, common.topic.webpage, m.0b47hvj
m.0ldk_r1, book.editorial_tenure.periodical, U-T San Diego
San Diego CityBeat, common.topic.notable_types, Newspaper
The San Diego Door, common.topic.notable_types, Newspaper
m.09xhylb, common.webpage.topic, San Diego
m.03ljxgq, common.webpage.topic, SeaWorld San Diego
SeaWorld San Diego, organization.organization.parent, m.010q2dsd
San Diego County, location.location.events, 2009 Oceanside International Film Festival
m.09xvxlc, common.webpage.topic, San Diego
San Diego Mariners, common.topic.notable_for, g.1255dk36y
San Diego Zoo, zoos.zoo.memberships, American Alliance of Museums
San Diego, common.topic.subject_of, Hotel Palomar San Diego, a Kimpton Hotel
SeaWorld San Diego, amusement_parks.park.rides, Abby's Sea Star Spin
m.0hzvw48, common.webpage.topic, U-T San Diego
San Diego Zoo Safari Park, common.topic.webpage, m.0h3_zpf
Aquatica San Diego, location.location.geolocation, m.010bbf12
U-T San Diego, common.topic.webpage, m.0fpskt4
Mission San Diego de Alcalá, common.topic.notable_for, g.125b7g2c4
m.0gx6xyr, common.webpage.topic, Rock 'n' Roll San Diego Marathon
m.09wn1g2, common.webpage.topic, San Diego
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fvq
San Diego, common.topic.image, SD Montage
San Diego, common.topic.webpage, m.0b496yr
San Diego Zoo, zoos.zoo.exhibits, Discovery Outpost Reptile House
SeaWorld San Diego, amusement_parks.park.rides, Manta
San Diego, military.military_post.people_posted_here, m.0ry9shv
Aquatica San Diego, business.asset.owners, m.0109583x
m.09yhr59, common.webpage.topic, San Diego
San Diego Zoo Safari Park, zoos.zoo.exhibits, Lion Camp
3043 San Diego, astronomy.orbital_relationship.orbits, Sun
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5g2q
San Diego Zoo, zoos.zoo.exhibits, Urban Jungle Giraffe Exhibit
San Diego Downtown News, common.topic.notable_for, g.125bwxqp1
Manta, amusement_parks.ride.park, SeaWorld San Diego
m.09xzpk4, common.webpage.topic, San Diego
Aquatica San Diego, organization.organization.acquired_by, m.010b2xxt
m.0ry9shv, military.military_posting.post, San Diego
San Diego–Tijuana, common.topic.image, SD-TJ Montage
San Diego, location.location.geolocation, m.0kjh2l
m.0h3_zpf, common.webpage.topic, San Diego Zoo Safari Park
San Diego County, location.location.events, 2013 Oceanside International Film Festival
m.03lnz59, common.webpage.topic, Mission San Diego de Alcalá
San Diego, common.topic.webpage, m.09ywr0r
Kearny Mesa, San Diego, common.topic.image, KearnyMesa convoy
San Diego–Tijuana, common.topic.image, Map of the San Diego-Tijuana
m.09ycnn9, common.webpage.topic, San Diego
San Diego Zoo, common.topic.webpage, m.03ldg3h
San Diego, common.topic.webpage, m.052m_4f
U-T San Diego, base.newsevents.news_reporting_organisation.news_reports, m.07w2r4p
San Diego, common.topic.webpage, m.09ycnn9
SeaWorld San Diego, common.topic.image, Journey to Atlantis attraction.
Point Loma, San Diego, common.topic.article, m.05s5k2
m.0b483s8, common.webpage.topic, San Diego
San Diego–Tijuana, common.topic.notable_types, Location
Kearny Mesa, San Diego, location.location.events,  Mooney M20L plane crash
San Diego, base.ndbcd.buoy.owned_by, National Ocean Service
m.062v5yl, common.webpage.topic, SeaWorld San Diego
San Diego CityBeat, book.newspaper.circulation_areas, San Diego
U-T San Diego, book.newspaper.circulation_areas, San Diego
Rock 'n' Roll San Diego Marathon, common.topic.image, San Diego marathon-201006
Aquatica San Diego, organization.organization.previous_names, m.0109wr8q
San Diego Zoo, common.topic.image, SDZooSign
m.09yh8cc, common.webpage.topic, San Diego
San Diego Zoo, zoos.zoo.exhibits, Polar Rim Polar Bear Exhibit
San Diego, common.topic.webpage, m.09wn1g2
Allied Gardens, San Diego, common.topic.notable_types, Neighborhood
San Diego, organization.organization_scope.organizations_with_this_scope, Ashford University
The San Diego Door, book.newspaper.circulation_areas, San Diego
San Diego, common.topic.subject_of, Hotel Solamar San Diego, a Kimpton Hotel
San Diego County, location.location.events, May 2014 San Diego County wildfires
Gaslamp Quarter, common.topic.image, San Diego Gaslamp Quarter entrance
Old Town San Diego State Historic Park, base.usnris.nris_listing.significance_level, State
Kearny Mesa, San Diego, common.topic.image, Federal Works Agency defense constr 1941
San Diego County, organization.organization_scope.organizations_with_this_scope, Thompson | Wedeking
San Diego Daily Transcript, book.newspaper.circulation_areas, San Diego
San Diego, common.topic.webpage, m.0b4619z
m.09y0q_m, common.webpage.topic, San Diego
San Diego, common.topic.webpage, m.09x49kb
San Diego, common.topic.webpage, m.09yhcvs
San Diego, common.topic.image, The San Diego skyline on March 31, 2007.
The Daily Aztec, book.newspaper.circulation_areas, San Diego
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5g1p
Rock 'n' Roll San Diego Marathon, common.topic.article, m.0fnfb9
Point Loma, San Diego, common.topic.image, Point loma lighthouse
The San Diego Door, book.periodical.final_issue_date, m.0j0y0_0
Aquatica San Diego, business.asset.owners, m.010950h3
92101, location.location.contains, San Diego
Old Town San Diego State Historic Park, common.topic.notable_for, g.125b7l86f
Maritime Museum of San Diego, common.topic.notable_types, Museum
3043 San Diego, common.topic.notable_for, g.1255j61xq
SeaWorld San Diego, amusement_parks.park.rides, Elmo's Flying Fish
Old Town, San Diego, common.topic.article, m.09rwmc8
San Diego, base.biblioness.bibs_location.country, United States of America
SeaWorld San Diego, common.topic.article, m.0c8ck0
m.09yhfq0, common.webpage.topic, San Diego
San Diego Reader, common.topic.webpage, m.03lhgdm
San Diego Daily Transcript, common.topic.notable_for, g.1255syl59
Hilton San Diego Bayfront, location.location.events, 2013 Comic-Con International
Aquatica San Diego, organization.organization.parent, m.0109555x
m.09ywr0r, common.webpage.topic, San Diego
San Diego Zoo Safari Park, common.topic.webpage, m.0gw20lm
San Diego Toreros men's basketball, common.topic.image, san diego.gif
U-T San Diego, base.newsevents.news_reporting_organisation.news_reports, m.07w2r4z
San Diego, common.topic.webpage, m.09yh8cc
San Diego Toreros, common.topic.image, san diego.gif
Rock 'n' Roll San Diego Marathon, common.topic.image, Richard Limo
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5ftp
3043 San Diego, astronomy.astronomical_discovery.discovery_site, Palomar Observatory
San Diego, common.topic.webpage, m.09yghyq
San Diego, government.governmental_jurisdiction.governing_officials, m.0101n4v_
Aquatica San Diego, organization.organization.phone_number, m.01095wmz
San Diego, common.topic.webpage, m.09xsgx0
San Diego Zoo, zoos.zoo.exhibits, Polar Rim Reindeer Exhibit
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Tiger Exhibit
San Diego Zoo Safari Park, zoos.zoo.exhibits, Elephant Valley
San Diego, common.topic.webpage, m.09x63n2
San Diego, common.topic.webpage, m.0b48v9_
Aquatica San Diego, common.topic.notable_types, Amusement Park
San Diego Fire-Rescue Department, common.topic.article, m.0gktz9
m.0k3flxg, common.webpage.topic, San Diego Zoo
San Diego County, organization.organization_scope.organizations_with_this_scope, A Plus Limos
SeaWorld San Diego, common.topic.webpage, m.062v5yl
The San Diego skyline on March 31, 2007., common.image.size, m.02d3jb0
San Diego Zoo, zoos.zoo.memberships, Association of Zoos and Aquariums
Old Town San Diego State Historic Park, protected_sites.protected_site.governing_body, California Department of Parks and Recreation
San Diego, common.topic.webpage, m.09yhr59
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fry
SeaWorld San Diego, amusement_parks.park.rides, Bayside Skyride
3043 San Diego, astronomy.star_system_body.star_system, Solar System
San Diego Reader, common.topic.notable_for, g.125bspxvp
San Diego, base.ndbcd.buoy.region, California
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Monkey Exhibit
San Diego Zoo, zoos.zoo.exhibits, Africa Rocks Big Cats Exhibit
San Diego, common.topic.webpage, m.0b466y3
San Diego Zoo, zoos.zoo.exhibits, Outback Koala Exhibit
San Diego Zoo Safari Park, zoos.zoo.exhibits, Nairobi Fillage
San Diego CityBeat, common.topic.notable_for, g.1259rkjvg
Synergy Insulation, organization.organization.geographic_scope, San Diego
San Diego Trolley, common.topic.image, Trolley in Old Town.
San Diego Fire-Rescue Department, common.topic.image, SDFD E28
SeaWorld San Diego, organization.organization.email, m.010q2dv7
San Diego, common.topic.webpage, m.09y0q_m
The San Diego Door, common.topic.notable_for, g.1254zc4z4
m.03lg557, common.webpage.topic, San Diego Zoo Safari Park
m.052m_4f, common.webpage.topic, San Diego
Mission San Diego de Alcalá, common.topic.article, m.0g72k
san diego.gif, common.image.appears_in_topic_gallery, San Diego Toreros men's basketball
San Diego, common.topic.webpage, m.09xzpk4
San Diego–Tijuana, common.topic.article, m.02758s3
San Diego, common.topic.webpage, m.09xrv2d
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5frl
Old Town San Diego State Historic Park, common.topic.notable_types, Tourist attraction
San Diego, travel.travel_destination.tourist_attractions, Aquatica San Diego
San Diego, travel.travel_destination.tourist_attractions, Cabrillo National Monument
San Diego Zoo, zoos.zoo.exhibits, Discovery Outpost Crocodile and Turtle Exhibit
San Diego, location.hud_foreclosure_area.hhuniv, m.07hc_kd
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Parker Aviary
San Diego Zoo, zoos.zoo.exhibits, Asian Passage Sun Bear Exhibit
San Diego Reader, book.periodical.frequency_or_issues_per_year, m.09s58cz
San Diego, common.topic.webpage, m.09x10xq
San Diego, common.topic.image, Skyline of San Diego, California
3043 San Diego, astronomy.celestial_object.category, Asteroid
San Diego Zoo, zoos.zoo.memberships, World Association of Zoos and Aquariums
92093, location.location.containedby, San Diego
Aquatica San Diego, common.topic.notable_for, g.11b5l_z8gx
UCSD Guardian, book.newspaper.circulation_areas, San Diego
San Diego Aviators, common.topic.notable_for, g.11b60z0fr7
San Diego Zoo, zoos.zoo.exhibits, Elephant Odyssey
m.0k3g7fv, common.webpage.topic, San Diego Zoo Safari Park
Aquatica San Diego, organization.organization.email, m.0109_wvf
Hotel Solamar San Diego, a Kimpton Hotel, common.topic.subjects, San Diego
Mission San Diego de Alcalá, common.topic.webpage, m.03lnz59
m.02np8pv, book.periodical_format_period.periodical, San Diego Reader
m.0b4619z, common.webpage.topic, San Diego
Old Town San Diego 012, common.image.appears_in_topic_gallery, Old Town, San Diego
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5ft9
3043 San Diego, common.topic.notable_types, Asteroid
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Birds of Prey Exhibit
m.02npbr5, book.periodical_format_period.periodical, U-T San Diego
San Diego Reader, book.newspaper.headquarters, m.04yz9yn
San Diego Zoo, common.topic.notable_for, g.1257w3w61
m.0cvjb5n, common.webpage.topic, 3043 San Diego
m.0b466y3, common.webpage.topic, San Diego
San Diego Fire-Rescue Department, common.topic.notable_for, g.1yp3cyr_1
San Diego Zoo, zoos.zoo.exhibits, Polar Rim Arctic Aviary Exhibit
m.09x10xq, common.webpage.topic, San Diego
San Diego CityBeat, common.topic.article, m.03h4tth
U-T San Diego, common.topic.webpage, m.03kwgtz
SeaWorld San Diego, amusement_parks.park.rides, Oscar's Rocking Eel
Hotel La Jolla, a Kimpton Hotel, common.topic.subjects, San Diego
San Diego Zoo Safari Park, common.topic.article, m.096px
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Australasian Aviary
San Ysidro McDonald's massacre, time.event.locations, San Diego
Mission Valley, location.location.events, San Diego Killing, Christmas Eve 2013
San Diego Fire-Rescue Department, common.topic.image, SDFDpatch
San Diego Zoo Safari Park, zoos.zoo.exhibits, Gorilla Forest
San Diego Zoo, common.topic.webpage, m.0k3flxg
Wild Arctic, amusement_parks.ride.park, SeaWorld San Diego
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fv0
San Diego Zoo, zoos.zoo.exhibits, Panda Canyon Panda Exhibit
m.05nncd8, common.webpage.topic, San Diego Zoo
San Diego Aviators, sports.sports_team.sport, Tennis
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5fvc
San Diego County, common.topic.notable_for, g.125ftf9sr
Old Town San Diego State Historic Park, common.topic.article, m.04c6gp
3043 San Diego, common.topic.webpage, m.0cvjb5n
m.09wytx8, common.webpage.topic, San Diego
San Diego, travel.travel_destination.tourist_attractions, Old Town San Diego State Historic Park
San Diego, common.topic.subject_of, Hotel La Jolla, a Kimpton Hotel
San Diego, common.topic.webpage, m.09xhjrs
San Diego Zoo, zoos.zoo.exhibits, Outback Wallaby Exhibit
m.0b47hvj, common.webpage.topic, San Diego
The San Diego Door, book.periodical.first_issue_date, m.0j0y0zr
m.09x63n2, common.webpage.topic, San Diego
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Flamingo Exhibit
Hotel Palomar San Diego, a Kimpton Hotel, common.topic.subjects, San Diego
San Diego Zoo, zoos.zoo.exhibits, Africa Rocks Kopje Exhibit
San Diego Zoo Safari Park, zoos.zoo.notable_animals, m.0h_5g20
San Diego Zoo, zoos.zoo.exhibits, Discovery Outpost Insect House
San Diego, common.topic.subject_of, Andrew W. Garcia
San Diego Zoo, zoos.zoo.exhibits, Africa Rocks Meerkat Exhibit
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Owens Aviary
San Diego, base.biblioness.bibs_location.state, California
Skyline of San Diego, California, common.image.appears_in_topic_gallery, San Diego
San Diego, location.location.partially_contained_by, m.0wg9gxv
San Diego, location.location.containedby, United States of America
San Diego Zoo Safari Park, zoos.zoo.exhibits, African Outpost
SeaWorld San Diego, common.topic.notable_types, Amusement Park
m.03lc9j_, common.webpage.topic, San Diego
San Diego, location.hud_foreclosure_area.total_90_day_vacant_residential_addresses, m.07hc_l1
m.09wycsc, common.webpage.topic, San Diego
Balboa Park, common.topic.image, San Diego Fair 1916 Laguna Flores
m.07w2r6m, base.newsevents.news_report.news_reporting_organisation, U-T San Diego
U-T San Diego, book.periodical.frequency_or_issues_per_year, m.0770btf
San Diego CityBeat, book.newspaper.headquarters, m.0j023fb
Old Town San Diego State Historic Park, travel.tourist_attraction.near_travel_destination, San Diego
San Diego Zoo, common.topic.webpage, m.05nncd8
The San Diego Door, book.newspaper.headquarters, m.0j0y11y
Mission San Diego de Alcalá, common.topic.image, Serra in San Diego May 19 1770
San Diego, common.topic.webpage, m.09wycsc
San Diego Reader, book.newspaper.headquarters, m.0ccctz5
San Diego, government.governmental_jurisdiction.governing_officials, m.010p0qs5
m.09x49kb, common.webpage.topic, San Diego
SeaWorld San Diego, common.topic.webpage, m.0gk8rfq
m.0b496yr, common.webpage.topic, San Diego
3043 San Diego, astronomy.asteroid.member_of_asteroid_group, Hungaria family
SeaWorld San Diego, amusement_parks.park.rides, Wild Arctic
San Diego Zoo, zoos.zoo.exhibits, Lost Forest Bonobo Exhibit
San Diego, common.topic.webpage, m.09xty2d
San Diego County, common.topic.article, m.0l2rv
U-T San Diego, common.topic.notable_for, g.125f3f1kq

Answer: Rock 'n' Roll San Diego Marathon