In Python

If input 1 and input 2 have the same parents, result = 0

Else if input 1 and input 2 have the same grandparents, result = 1

Else if input 1 and input 2 have same g_grandparents , result = 2

Else if input 1 and input 2 have same g_g_grandparents , result = 3

Continue until found they have the same g_g_g._grandparents,

For adding one g, result +1

Else if no relationship between two inputs, result = -1

tree = [[Max, None , None],

[Luc, Max, None],

[Lue, Max, None],

[Joy, Luc, Yoyo],

[Geo, Joy, Zoe,],

[Julie, Geo, Eva],

[input1, Brand, Julie],

[Jim, Lue, Rae],

[Gil, Jim, Ree],

[Rose, Gil, Mandy]

[input2, James, Rose]

this followed by [people, father, mother]

degree(input1, input2, tree)

4 Write the function degree(input1, input2, tree)

Max Rae Yoyo Luc Lue Zoe Ree Joy Jim Mandy Ana Geo Eva Boo Gil Julie James Rose Brand Input1 Input2