safety-valve institutions
... that the function of safety-valve institutions such as gambling or pornography is to reduce the tensions in the society?
... that the <a href="./Manifest_and_latent_functions_and_dysfunctions" id="mwag" rel="mw:WikiLink" title="Manifest and latent functions and dysfunctions">function</a> of <b id="mwaw"><a href="./Safety-valve_institution" id="mwbA" rel="mw:WikiLink" title="Safety-valve institution">safety-valve institutions</a></b> such as <a href="./Gambling" id="mwbQ" rel="mw:WikiLink" title="Gambling">gambling</a> or <a href="./Pornography" id="mwbg" rel="mw:WikiLink" title="Pornography">pornography</a> is to reduce the tensions in the society?