Final answer:
Family relationships such as father-children and husband-wife often entail strong obligations and rights, historically involving provision, protection, and mutual support. Other relationships like mother's brother to sister's child or siblings may have fewer formal obligations, though this can vary by culture.
Step-by-step explanation:
The relationships within family and society often indicate varying degrees of rights and obligations. For example, within Confucian ethics, relationships such as father-son, lord-retainer, and husband-wife are fundamental to the social structure, encompassing many obligations and responsibilities. A father-children relationship, culturally and historically, has been perceived as one with strong obligations, with the father having the responsibility to provide and protect while children are obliged to respect and honor their parents.
In terms of a husband-wife relationship, historically, it has entailed shared rights to property and mutual support, indicating a strong bond with substantial mutual obligations. Conversely, the relationship of a mother's brother to a sister's child (cross-cousin), and the relationships among siblings can be seen as weaker in terms of societal obligations and rights, although this can vary significantly across cultures and history.
For instance, in some tribal societies, marriage partners are chosen from among cross-cousins to maintain a strong kinship line and in the Han Dynasty, matrilineal and patrilineal kin were valued relatively equally which influenced rights and obligations among siblings and extended kin. Given the complexity of kinship relations and their impact on rights and obligations, it's clear that such dynamics are influenced by cultural norms, legal practices, and societal structures, making them context-dependent.