I want to ask is the income from schedule K1 considered to be effectively connected or not effectively connected with US Trade/Business ?

Hi, I received 1065 K1 form and I'm a none-resident, I want to ask is the income from schedule K1 considered to be  effectively connected or not effectively connected with US Trade/Business. This is my only income from US and according to the Exceptions:

 You do not need to file

Form 1040NR if you meet (1), (2), (3),

or (4) below.

4. You were a partner in a U.S.

partnership that was not engaged in a

trade or business in the United States

during 2018 and your Schedule K-1

(Form 1065) includes only income

from U.S. sources reportable on

Schedule NEC, lines 1 through 12.

I'm confused if I meet this, anyone can help to answer this question? Thanks a lot.