Enter file to read from: fb1.txt
1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 1

Harry (Gryffindor) is friends with
  Ron (Gryffindor)
  Hermione (Gryffindor)
  Cho (Ravenclaw)
Ron (Gryffindor) is friends with
  Harry (Gryffindor)
  Hermione (Gryffindor)
Hermione (Gryffindor) is friends with
  Harry (Gryffindor)
  Ron (Gryffindor)
  Luna (Ravenclaw)
Draco (Slytherin) is friends with
  nobody.
Ernie (Hufflepuff) is friends with
  Hannah (Hufflepuff)
Hannah (Hufflepuff) is friends with
  Ernie (Hufflepuff)
Luna (Ravenclaw) is friends with
  Hermione (Gryffindor)
Cho (Ravenclaw) is friends with
  Harry (Gryffindor)

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 2

Who to look for? Hermione
Hermione (Gryffindor) is friends with
  Harry (Gryffindor)
  Ron (Gryffindor)
  Luna (Ravenclaw)

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 3

Harry (Gryffindor) is friends with
  Cho (Ravenclaw)
Hermione (Gryffindor) is friends with
  Luna (Ravenclaw)
Luna (Ravenclaw) is friends with
  Hermione (Gryffindor)
Cho (Ravenclaw) is friends with
  Harry (Gryffindor)

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 4

What is this person's name?  Cedric
What is their house?  Hufflepuff

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 5

Name 1? Cedric
Name 2? Harry

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 4

What is this person's name?  Pansy
What is their house?  Slytherin

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 5

Name 1? Draco
Name 2? Pansy

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 1

Harry (Gryffindor) is friends with
  Ron (Gryffindor)
  Hermione (Gryffindor)
  Cho (Ravenclaw)
  Cedric (Hufflepuff)
Ron (Gryffindor) is friends with
  Harry (Gryffindor)
  Hermione (Gryffindor)
Hermione (Gryffindor) is friends with
  Harry (Gryffindor)
  Ron (Gryffindor)
  Luna (Ravenclaw)
Draco (Slytherin) is friends with
  Pansy (Slytherin)
Ernie (Hufflepuff) is friends with
  Hannah (Hufflepuff)
Hannah (Hufflepuff) is friends with
  Ernie (Hufflepuff)
Luna (Ravenclaw) is friends with
  Hermione (Gryffindor)
Cho (Ravenclaw) is friends with
  Harry (Gryffindor)
Cedric (Hufflepuff) is friends with
  Harry (Gryffindor)
Pansy (Slytherin) is friends with
  Draco (Slytherin)

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 6

Name 1? Cho
Name 2? Harry

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 1

Harry (Gryffindor) is friends with
  Ron (Gryffindor)
  Hermione (Gryffindor)
  Cedric (Hufflepuff)
Ron (Gryffindor) is friends with
  Harry (Gryffindor)
  Hermione (Gryffindor)
Hermione (Gryffindor) is friends with
  Harry (Gryffindor)
  Ron (Gryffindor)
  Luna (Ravenclaw)
Draco (Slytherin) is friends with
  Pansy (Slytherin)
Ernie (Hufflepuff) is friends with
  Hannah (Hufflepuff)
Hannah (Hufflepuff) is friends with
  Ernie (Hufflepuff)
Luna (Ravenclaw) is friends with
  Hermione (Gryffindor)
Cho (Ravenclaw) is friends with
  nobody.
Cedric (Hufflepuff) is friends with
  Harry (Gryffindor)
Pansy (Slytherin) is friends with
  Draco (Slytherin)

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 7

Who to remove? Harry

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 1

Ron (Gryffindor) is friends with
  Hermione (Gryffindor)
Hermione (Gryffindor) is friends with
  Ron (Gryffindor)
  Luna (Ravenclaw)
Draco (Slytherin) is friends with
  Pansy (Slytherin)
Ernie (Hufflepuff) is friends with
  Hannah (Hufflepuff)
Hannah (Hufflepuff) is friends with
  Ernie (Hufflepuff)
Luna (Ravenclaw) is friends with
  Hermione (Gryffindor)
Cho (Ravenclaw) is friends with
  nobody.
Cedric (Hufflepuff) is friends with
  nobody.
Pansy (Slytherin) is friends with
  Draco (Slytherin)

1. Print all people and friends.
2. Print the friends of a person.
3. Print friends who are in different houses.
4. Add a new person.
5. Add a new friendship.
6. Remove a friendship.
7. Remove a person (and all their friendships).
8. Quit.

Enter choice: 8