Given an entity, a before event, an after event, and an attribute related to the entity, generate a sentence as output. Your sentence should show the changes in the attribute of the entity.

Example Input: entity: seam allowance
before: unadded
after: added
attr: size
Example Output: size of seam allowance was unadded before and added afterwards

Example Input: entity: spoon
before: clean
after: dirty
attr: cleanness
Example Output: cleanness of spoon was clean before and dirty afterwards

Example Input: entity: broccoli
before: unseasoned
after: seasoned
attr: taste
Example Output:
taste of broccoli was unseasoned before and seasoned afterwards