Ambiguity in R186(j) Work without a work permit - Public Speakers

[Darwin K]

"FW1 Foreign Worker Manual"
www . cic.gc.ca/english/resources/manuals/fw/fw01-eng.pdf
says in section 5.11 on p. 30:

5.11 Work without a work permit R186(j) - Public speakers
R186(j) includes both guest speakers for specific events (such as an academic speaker at a university or college function) and commercial speakers or seminar leaders provided the seminar to be given by the foreign speaker entering under this provision does not last longer than five days.

A 'seminar' is defined as a small class at a university, etc. for discussion and research, or a short intensive course of study, or a conference of specialists. ...

Does the definition of seminar mean:
A 'seminar' is defined as (1) a small class at a university, etc. for discussion and research, or (2) a short intensive course of study, or (3) a conference of specialists. ...
or does it mean:
A 'seminar' is defined as a small class at a university, etc. for (1) discussion and research, or (2) a short intensive course of study, or (3) a conference of specialists. ...

In other words, consider (2) or (3): a short intensive course of study or a conference of specialists; if it is not a small class at a university, is it a seminar by the definition? The first interpretation says yes, while the second says no.

(I think the second interpretation is wrong, because "a small class for a conference" doesn't make sense -- you don't hold a conference as a class. And academic conferences, which are presumably meant to be exempted, are often not small and often not held at a university.)