title: Cyper - odd error when creating relationship
body: <p>I've got the following query, which responds with the very cryptic error message of </p>
  
  <pre><code>"Invalid input 'H': expected 'i/I' (line 2, column 2)"
  </code></pre>
  
  <p>Here's the query:</p>
  
  <pre><code>CREATE UNIQUE (c:AccountCharge)-[:ACCOUNT_CHARGED]-&gt;(a:Account)
  WHERE (a.ID = "a7f7def6-8f2b-4b21-bfac-dab2f6e6eaae")
  AND (c.ID = "666b1865-e29d-455b-abb0-50d679952543")
  </code></pre>
  
  <p>Both the nodes exist, and I can't see where there's a break anywhere, but Neo4J does not like it at all.  </p>
  
  <p>The query's being created by C# Neo4JClient, but even retyping it manually I still get the same error, so it's not a hidden character or anything.</p>