Help Reading Combinability Section of Fare Rules
 

Looking at this fare as an example, according to the rules, which of the following if any am I allowed to do without affecting how these segments are already priced?
(i) Nesting FRA-MUC-FRA (or some other domestic flight) in the 14h55m I have in FRA
(ii) Nesting GRU-GIG-GRU (or some other domestic flight) in the 10h5m I have in GRU
(iii) Adding BOG-CTG (or some other domestic flight) at my destination of BOG
(iv) Nesting EZE-COR-EZE (or some other domestic flight) in the 11h20m I have in GIG

Also, if any of the above are indeed possible, must it be an LH group fare to be combined, or an LH codeshare, or am I literally free to add any fare and any flight available?

Thanks in advance for the help!

https://cimg1.ibsrv.net/gimg/www.fly...8ed1ff1513.png


Stopovers
STOPOVERS NOT PERMITTED ON THE FARE COMPONENT.

Combinability
END-ON-END NOT PERMITTED. SIDE TRIPS PERMITTED.
APPLICABLE ADD-ON CONSTRUCTION IS ADDRESSED IN
MISCELLANEOUS PROVISIONS - CATEGORY 23.
OPEN JAWS
FARES MAY BE COMBINED ON A HALF ROUND TRIP BASIS
-TO FORM SINGLE OR DOUBLE OPEN JAWS.
A MAXIMUM OF TWO INTERNATIONAL FARE COMPONENTS
PERMITTED.
MILEAGE OF THE OPEN SEGMENT MUST BE EQUAL/LESS THAN
MILEAGE OF THE LONGEST FLOWN FARE COMPONENT.
PROVIDED -
THE OPEN SEGMENT MUST BE
WITHIN
-WITHIN CZECH REPUBLIC OR WITHIN AREA 1
COMBINATIONS ARE WITH ANY F-/A-/J-/C-/D-/Z-/P-/G-/E-/
N-/Y-/B-/M- TYPE FARES FOR CARRIER LH/OS/LX/SN/EW IN
ANY RULE IN ANY TARIFF.
ROUND TRIPS/CIRCLE TRIPS
FARES MAY BE COMBINED ON A HALF ROUND TRIP BASIS
-TO FORM ROUND TRIPS
-TO FORM CIRCLE TRIPS
A MAXIMUM OF TWO INTERNATIONAL FARE COMPONENTS
PERMITTED.
PROVIDED -
COMBINATIONS ARE WITH ANY F-/A-/J-/C-/D-/Z-/P-/G-/E-/
N-/Y-/B-/M- TYPE FARES FOR CARRIER LH/OS/LX/SN/EW IN
ANY RULE IN ANY TARIFF.