Sentence:  Amy had to be safe , had to come back to them - if only to reap that share of life 's experiences that were her due , if only to give her <WSD>parents</WSD> another chance to do better by her . 
Meaning of the word marked with <WSD> tags:  a father or mother; one who begets or one who gives birth to or nurtures and raises a child; a relative who plays the role of guardian