8 - FK 
id -> object_data.obj_id
    10 glossary_term (glossary terms)
    12 - FK glo_id -> glossary.id
    14 glossary_definition (term definitions) --> outdated/abandoned
    16 - FK term_id -> glossary_term.id
    18 glo_advmd_col_order (order 
for advanced metadata fields)
    20 - FK glo_id -> glossary.id
    23 glo_glossaries (
auto linked glossaries)
    24 - FK 
id -> glossary.id (source glossary)
    25 - FK glo_id -> glossary.id (
auto linked target glossary)
    28 - glo_id -> glossary.id
    29 - term_id -> glossary_term.id (term not belonging 
to glo_id glossary)
    34 - Editing Style is used 
from source glossary
    35 - Editing Adv. 
Metadata fields are used 
from source glossary
    36 - Auto linked glossaries are used 
from source glossary
    37 - Referencing glossary determines presentation
 
to(\GdImage $image, int $quality=null)
Currently this is the only way to make a FileStream from a GD image resource.