removed classmethod decorator

anansyTypes/structures/lexeme.py

@@ -15,7 +15,6 @@ class Lexeme(ABC):
         pass
 
     @property
-    @abstractmethod
     def embedding(self) -> Embedding:
         """Embedding(s) associated with the lexeme."""
         raise NotImplementedError("Embeddings are not supported") #added to allow for NoEmbeddingPhrase