INSERT looks like:

INSERT (property1='value1' property2='value2' ...)  

For example:

INSERT (first_name='John' last_name='Smith' age='33')  

UPDATE pseudo code is:

UPDATE 
  (SET 
       (PROPERTY1 = VALUE1 PROPERTY2 = VALUE2 ...)?
       ((.. CONNECTED EXPRESSION ..))?       
  )?
 
  (REMOVE
       (PROPERTY3 PROPERTY4 ...)?
       ((.. CONNECTED EXPRESSION ..))?       
  )?
      
WHERE (.. MATCH EXPRESSION ..) 

Examples:

UPDATE  
 SET 
  first_name='Mike' age='31' hear='brown'
WHERE (id='1234567890')

or

UPDATE  
 SET 
  last_name='Smith'
  (name='live at' or name='work at')

 REMOVE 
  age hear
  (some-relation1='relation-1' AND some-relation2='relation-2'))
WHERE (id='1234567890')

DELETE template is:

DELETE (.. MATCH EXPRESSION ..)

Examples:

DELETE (id='1234567890')

or delete network path / network

DELETE (first_name='John') / (name='live at') / (address='US, CA, LA, some address')