In WikiData is very large amount of Qnnnn entities and much smaller set of Lnnnn lexems.

One lexem can have many senses and many different words can be synonyms (problem: sometimes very close meaning but not the same)

For example in multilingual Wordnet : Polish->English word "kot" has:

02121808-n
kot, kot domowy
domestic cat, house cat, Felis domesticus, Felis catus
    any domesticated member of the genus Felis

10149241-n
kot
grunt
    an unskilled or low-ranking soldier or other worker

10508379-n
kot
raw recruit
    an inexperienced and untrained recruit

02121620-n (18)
kot
cat, true cat
    feline mammal usually having thick soft fur and no ability to roar: domestic cats; wildcats

10641301-n
kot
sprog
    a new military recruit

# of them: 10149241-n  10508379-n and 10641301-n are English synonyms, very close meanings, differ lexem. In Polish is one lexem "kot", In Polish shouldn't distinguish this 3 senses, instead of should be one general definition.