Dependent income: my mother is retired and is a dependent on my taxes when asking for her income for 2016 does that mean they want her Social security income

[TomD8]

Social Security income is not included in the dependency exemption income limit unless the person is married filing a separate return and lived with their spouse at any time during the tax year; or if 1/2 their social security benefits plus their other gross income and tax exempt interest is more than $25,000 ($32,000 if MFJ).