Natural Language API's Content Category

[SepArmeen]

Hello Cloud Forum

As listed below , the Natural Language API's Content Categories has 27 major categories (and 620 sub categories.).

When I already know my text is generally about Sport, in order to narrow down text categorization and increase accuracy, I want to only use /Sports (from 27 major categories) to analyze my text ( not for example /Arts & Entertainment). what's the way to accomplish this?

Content Categories:

/Adult
/Arts & Entertainment
/Autos & Vehicles
/Beauty & Fitness
/Books & Literature
/Business & Industrial
/Computers & Electronics
/Finance
/Food & Drink
/Games
/Health
/Hobbies & Leisure
/Home & Garden
/Internet & Telecom
/Jobs & Education
/Law & Government
/News
/Online Communities
/People & Society
/Pets & Animals
/Real Estate
/Reference
/Science
/Sensitive Subjects
/Shopping
/Sports
/Travel