el)<br/>&nbsp;&nbsp;(vin:hasMaker vin:Elyse) (vin:hasColor 
vin:Red))</code><br/>
<h3>5.7 &nbsp;Adding Slot Values </h3>
<p>Setting a slot value <font color=red>must show</font> very different 
behaviors in SWCLOS. (setf slot-value) is available but it does 
<strike>not</strike> overwrite an old value. <font color=red>However, a new slot 
value must be added into slot in the semantics of RDF and the principle of 
monotonicity. So, <b>put-value</b> is provided for RDF semantics.</font> It just 
adds a new va