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

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).