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Filing Type: 10-Q
Filing Date: 20180521
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sog10q2018q1_180518a.htm
10-Q
XBRL INSTANCE FILE
EX-101.INS
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EX-101.SCH
XBRL CALCULATION FILE
EX-101.CAL
XBRL DEFINITION FILE
EX-101.DEF
XBRL LABEL FILE
EX-101.LAB
XBRL PRESENTATION FILE
EX-101.PRE
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