human
Japanese sentence "私たちの車は駅の近くでたまたま彼らの車とすれ違った。" translates to "Our car happened to pass theirs near the station.", the word "たまたま" in the sentence has these possible definitions: 
1. by chance; by accident; accidentally; happen to (be, do); unexpectedly; casually​
2. occasionally; once in a while; now and then

Which one do you think fits best in this context?
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
Yes

--- Answer ---
grounded