% Load a requirement set file and find justification objects
rs = slreq.load('C:\MATLAB\My_Requirements_Set_1.slreqx');
myJustifications = find(rs, 'Type', 'Justification')

myJustifications = 

  1×13 Justification array with properties:

    Id
    Summary
    Description
    Keywords
    Rationale
    CreatedOn
    CreatedBy
    ModifiedBy
    SID
    FileRevision
    ModifiedOn
    Dirty
    Comments

% Find the parent of the first justification object
parentJust1 = parent(myJustifications(1))

parentJust1 = 

  ReqSet with properties:

             Description: ''
                    Name: 'My_Requirements_Set_1'
                Filename: 'C:\MATLAB\My_Requirements_Set_1.slreqx'
                Revision: 6
                   Dirty: 1
    CustomAttributeNames: {}

% Find the parent of the third justification object
parentJust3 = parent(myJustifications(3))

parentJust3 = 

  Justification with properties:

              Id: 'J1'
         Summary: 'Justifications'
     Description: ''
        Keywords: [0×0 char]
       Rationale: ''
       CreatedOn: 27-Feb-2014 10:15:38
       CreatedBy: 'Jane Doe'       
      ModifiedBy: 'John Doe'
             SID: 35
    FileRevision: 11
      ModifiedOn: 02-Aug-2017 13:49:40
           Dirty: 1
        Comments: [0×0 struct]