That is essentially most of America's workforce. Samples came from six major metropolitan areas: San Francisco, Boston, Minneapolis, Los Angeles, New York City, and Seattle. A study published on Tuesday in PLoS Medicine suggests that boosting vitamin D levels with supplements would not help. Pool testing allows scientists to test samples more efficiently, analyzing many samples at once. To test samples more efficiently, the researchers used a technique called 'pooling.'
Microsoft is a giant and has no employees.
( z0 and :op ( z1 giant :domain ( z2 company :name ( z3 name :op "Microsoft" ) ) ) :op ( z4 have :ARG0 z2 :ARG1 ( z5 person :ARG1-of ( z6 employ ) ) :polarity - ) )
(z0 / and
    :op1 (z1 / giant
             :domain (z2 / company
                         :name (z3 / name
                                   :op1 "Microsoft")))
    :op2 (z4 / have-03
             :ARG0 z2
             :ARG1 (z5 / person
                       :ARG1-of (z6 / employ-01))
             :polarity -))
Microsoft is a giant and has no employees .
z2 :name z3
z3 :op1 1
z1 :domain z2
z0 :op1 z1
z0 :op2 z4
z4 :ARG0 z2
z4 :polarity 0
z4 :ARG1 z5
z5 :ARG1-of z6