a. You who stayed up last night should go to bed early tonight.
Does that mean
a1. You, who stayed up last night, should go to bed early tonight.
or
a2. Those of you who stayed up last night should go to bed early tonight.
?
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b. They who came here yesterday will come here tomorrow,
Does that mean
b1. They, who came here yesterday, will come here tomorrow.
or
b2. Those who came here yesterday will come here tomorrow.
?
Many thanks