[lojban] and/or

[Opi Lauma <opilauma@yahoo.com>]

Hi,

I am searching for the words which I have to use to connect  arguments of sumti in the following 3 cases:

Case I:
Bears killers came into the city.
The sentence means that every object which came into the city is bear AND killer simultaneously.

Case II:
Bears and killers came into the city.
The sentence means that every object which came into the city is EITHER bear OR killer.
Here one  can distinguish two sub-cases. 
II A: the object cannot be bear and killer simultaneously.
II B: the object can be bear and killer simultaneously.

Case III:
Bears or killers came into the city.
The sentence means that one of the following two sentences is correct (but I do not know which one):
1. Bears came into the city.
2. Killers came into the city.
Here one can also distinguish two sub-cases:
III A: I do not know which of the two above sentences is correct but I know that only one of them is correct.
III B: At
 least one (may be two) sentences are correct.

P.S.
 It is interesting to notice that in the case II, in the sentence, I use "AND" and to explain the meaning  of the sentence I need to use "OR". And this strange disagreement exists not only in English. Does it exist in Lojban?

Thank you in advance,
opilaumas

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