SG, Inc., a 501(c)(3) organization, receives the following sources of support during the tax year.

General public for services rendered	$22,000
City of National for services rendered	30,000
City of Star for services rendered	3,000
City of Central for services rendered	8,000
Gross investment income	19,000
Contributions from individual substantial contributors (disqualified persons)	18,000
Is SG, Inc. classified as a private foundation? Explain you answer.