```ruby
# Read about factories at https://github.com/thoughtbot/factory_girl

FactoryGirl.define do
  factory :sequence do
    title "MyString"
    description "MyText"
  end
end
```

Add abstract to sequence factory.
user
```ruby
# Read about factories at https://github.com/thoughtbot/factory_girl

FactoryGirl.define do
  factory :sequence do
    title "MyString"
    description "MyText"
    abstract "short abstract"
  end
end
```
assistant