A Wordnet from the Ground Up

5.2. plWordNet at Three 175percentage of singleton synsets. It means that a large number of nominal lemmas aredescribed by several singleton synsets. The columns from 2nd to the 10th describepolysemous lemmas. Observe a slight tendency of verbal and adjectival lemmas tohave more meanings than do the nominal ones.Finally, Table 5.7 presents the number of instances of each lexico-semantic relation.Some relations are defined only for particular parts of speech. The table cells for theundefined combinations are filled with ‘—’. As expected, the derivational relationsdominate in the verbal and adjectival parts of plWordNet. For verbs, the set of definedrelations is clearly not rich enough. We plan to expand it in the future.RelationNo. instancesNouns Verbs Adjectives AllHypernymy 12150 687 155 12992Holonymy 1454 0 0 1454Meronymy 1563 0 0 1563Troponymy 0 37 0 37Antonymy 1212 173 1618 3003Conversion 35 66 0 101Relatedness 981 2618 1226 4825Pertainymy 1469 191 295 1955Fuzzynimy 640 44 423 1107Table 5.7: The number of lexico-semantic relations in plWordNetHypernymy among nouns seems to tend toward depth (perhaps due to the definitionof the synset, assumed in plWordNet), but the limited size of the plWordNet 1.0 doesnot allow fully justified conclusions yet. The longest hyponymy path has 11 links:{istota ‘being’}→{człowiek ‘human’, istota ludzka ‘human being’, homo sapiens‘Homo sapiens’, człowiek rozumny ‘sapient (human)’}→{człowiek ze względu na swoje zajęcie ‘human by occupation’}→{pracownik ‘employee’}→{pracownik ze względu na rodzaj pracy ‘employee by job’}→{pracownik instytucji publicznych ‘public servant’}→{funkcjonariusz ‘officer’}→{żołnierz ‘soldier’}→{komandos ‘commando, ranger’}→{spadochroniarz ‘paratrooper’, skoczek spadochronowy‘parachutists’}The semi-automatic expansion of plWordNet focused mainly on the nominal part.650 nominal synsets – a relatively high number – have been linked to more than one