Fix noun_chunk rules around coordination

Closes #693.

spacy/syntax/iterators.pyx

@@ -11,9 +11,11 @@ def english_noun_chunks(obj):
     conj = doc.vocab.strings['conj']
     np_label = doc.vocab.strings['NP']
     for i, word in enumerate(obj):
-        if word.pos in (NOUN, PROPN, PRON) and word.dep in np_deps:
+        if word.pos not in (NOUN, PROPN, PRON):
+            continue
+        if word.dep in np_deps:
             yield word.left_edge.i, word.i+1, np_label
-        elif word.pos == NOUN and word.dep == conj:
+        elif word.dep == conj:
             head = word.head
             while head.dep == conj and head.head.i < head.i:
                 head = head.head

spacy/tests/regression/test_issue693.py

@@ -4,7 +4,6 @@ from __future__ import unicode_literals
 import pytest
 
 
-@pytest.mark.xfail
 @pytest.mark.models
 def test_issue693(EN):
     """Test that doc.noun_chunks parses the complete sentence."""
@@ -15,5 +14,7 @@ def test_issue693(EN):
     doc2 = EN(text2)
     chunks1 = [chunk for chunk in doc1.noun_chunks]
     chunks2 = [chunk for chunk in doc2.noun_chunks]
+    for word in doc1:
+        print(word.text, word.dep_, word.head.text)
     assert len(chunks1) == 2
     assert len(chunks2) == 2