Given the following training data, please construct decision tree.

$\backslash$begin$\{$tabular$\}\{||$c$||$c$|$c$|$c$||\}$

$\backslash$hline $\backslash$hline Name & Age & Salary & Donor? $\backslash \backslash$

$\backslash$hline $\backslash$hline Nancy & $21$ & $37,000$ & N $\backslash \backslash$

$\backslash$hline Jim & $27$ & $41,000$ & N $\backslash \backslash$

$\backslash$hline Allen & $43$ & $61,000$ & Y $\backslash \backslash$

$\backslash$hline Jane & $38$ & $55,000$ & N $\backslash \backslash$

$\backslash$hline Steve & $44$ & $30,000$ & N $\backslash \backslash$

$\backslash$hline Peter & $51$ & $56,000$ & Y $\backslash \backslash$

$\backslash$hline Sayani & $53$ & $70,000$ & Y $\backslash \backslash$

$\backslash$hline Lata & $56$ & $74,000$ & Y $\backslash \backslash$

$\backslash$hline Mary & $59$ & $25,000$ & N $\backslash \backslash$

$\backslash$hline Victor & $61$ & $68,000$ & Y $\backslash \backslash$

$\backslash$hline Dale & $63$ & $51,000$ & Y $\backslash \backslash$

$\backslash$hline $\backslash$hline

$\backslash$end$\{$tabular$\}$