quick sanity check question on sub-query, service and variable scoping

[Gary King]

Here is a contrived example trying to find when some person has a startTime 
after other people (I did say it was contrived :-)). First with sub-query and 
then with SERVICE:

select distinct * {
  ?person a ex:Person .
  ?person ex:startTime ?time1 .

  { select ?otherPerson {
    ?otherPerson a ex:Person .
    ?otherPerson ex:startTime ?time2 .
    FILTER (?time2 > ?time1)
  } }
}

select distinct * {
  ?person a ex:Person .
  ?person ex:startTime ?time1 .

  service <http://example.com/foo> {
    ?otherPerson a ex:Person .
    ?otherPerson ex:startTime ?time2 .
    FILTER (?time2 > ?time1)
  }
}

My belief is that both of these will correctly return no results because 
`?time1` is not bound in either the sub-query or the service call and so the 
filter will uniformly fail. 

Correct?

thanks,

--
Gary Warren King, metabang.com 
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