"I am my daughter's father."
Translation:Ich bin der Vater meiner Tochter.
For all of those that are asking, the two sentences "Ich bin der Vater meiner Tocher" (I am my daughter's father) and "Ich bin der Vater von meiner Tochter" (I am the father of my daughter) are identical in meaning, but not in structure. The former uses the GENITIVE case, and the latter uses the DATIVE case. It is actually a bad example, because for singular feminine nouns the genitive is identical to the dative. A better example might be: "Ich bin der Vater von meinem Sohn" vs. "Ich bin der Vater meines Sohnes" where the latter is genitive.