title: Multi Key Multi Value map possible?
body: <p>I see there is a <code>Multimap</code> that allows duplicate values for a key <a href="http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/collect/Multimap.html" rel="nofollow">http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/collect/Multimap.html</a></p>
  
  <p>I also noticed guava has a <code>Table</code> which allows multiple keys, but not duplicated values. <a href="http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/collect/Table.html" rel="nofollow">http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/collect/Table.html</a></p>
  
  <p>I can't find anywhere where there is a "Table" that allows duplicated values, or a "Multimap" that allows multiple keys.</p>
  
  <p>Is this something that exists already, or would I have to implement this myself?</p>
  
  <p>I just want to implement a <code>Multimap</code> with 2 keys i.e. <code>&lt;K1, K2, Value&gt;</code></p>