Cypher: How to merge two nodes' keys in a third node

Question

in cypher i want to create a node that has attributes of two existing nodes. I know that to "copy" a node the query is: MATCH (old:Type) CREATE (new:Type) SET new=old but this allow me to have the keys from just one node. I need a way to join the keys of two nodes and copy that node

match (a:Ubuntu1604), (h:Host) CREATE (b:Ubuntu1604) SET b=a,b=h return b 

will obviously create b equals to h. I need and "append" function

Answer 1

I figured out myself. Solution is simply

match (a:Ubuntu1604), (h:Host) CREATE (b:Ubuntu1604) SET b=a, b+=h return b