anchor.diff:      pasta = doc[6]
       hippo = doc[8]
       assert apple.similarity(banana) > pasta.similarity(hippo)
  +    assert apple.has_vector, banana.has_vector, pasta.has_vector, hippo.has_vector
   
   +infobox
       |  #[strong Usage:] #[+a("/docs/usage/word-vectors-similarities") Word vectors and similarity]
  
positive.code: 
  +infobox
      |  #[strong Usage:] #[+a("/docs/usage/saving-loading") Saving and loading]
  
  +h(2, "multi-threaded") Multi-threaded generator
  
  
negative.code:     doc_dep = nlp(u'This is a sentence.')
      displacy.serve(doc_dep, style='dep')
  
      doc_ent = nlp(u'When Sebastian Thrun started working on self-driving cars at Google '
                    u'in 2007, few people outside of the company took him seriously.')
      displacy.serve(doc_ent, style='ent')
  
  +infobox
      |  #[strong API:] #[+api("displacy") #[code displacy]]
      |  #[strong Usage:] #[+a("/docs/usage/visualizers") Visualizers]
  
  +h(2, "examples-word-vectors") Get word vectors and similarity
      +tag-model("word vectors")
  
  +code.
  