1. Schedule
Player_name
Time
Start_date
Event_no
Player_weight
End_date
Player_gender
Player_no
Senior_no
Event
Player_height
Player
Encourage N M
Encouraged person
Encourager
Team
Team_no
Team_event
Player_nation
Country
City
Player_birthday
Coach
Venue
Player_age 유도됨
Olympic
Mascot
Year

2. Olympic
Venue Yr
Country
City
Mascot
Cheering
has5 1 N
End date
Type
Start date 1
has4 N
Event name
Event no
Time
Schedule no
Cheering
has3 1 1
Schedule
Event 1 1
has2
Sponsor name
Player name
Player gender
Player height
Player weight
Player nation
Player birthday
Player age
Player
Encourage N M
Encouraged person
Encourager
Player no
has 1
Sponsor 1
Sponsor no
(1,N)
Support
(1,1)
(1,L)
Team
Team no 1
Belongs 1
Team event
Cheering
has1 N
All
participation
Fan
Partial participation M
Fan no
Fan name

3. Sponsor name
Player name
Player gender
Player height
Player weight
Player nation
Player birthday
Player age
Player
Encourage N M
Encouraged person
Encourager
Player no
Sponsor
(1,N)
Support
(1,M)
Team
(1,L)
Team no 1
Belongs 1
Team event
Cheering
has 1
All
participation
Fan
Partial participation N
Fan no
밑줄 점선으로
Team no