It is tricky for me to guess your intention. On one hand you are indicating that both of those a and b are community (no main underscore inside their names) so I ought to theoretically be permitted to obtain/mutate (get/established) each. But Then you really specify an explicit mutator only https://smartworldeveloper.in/smart-world-69-gurgaon-redefining-urban-luxury-living-in-sector-69/