ratings:
type: textfile
file: ratings.csv
format: csv
entity_type: rating
header: true
movies:
file: movies.csv
entity_type: item
columns: [id, name]
tags:
file: tags.csv
entity_type: item-tag
columns:
- name: item
type: long
- name: user
- name: tag
type: string
- name: timestamp
