src/utils.py (2 lines):
	- line 95: # TODO: other optimziers
	- line 156: res = np.zeros(shape=(nb_entities, nb_features), dtype=np.float32) # TODO: predicate features


src/regularizers.py (1 line):
	- line 17: def penalty(self, x, factors): #TODO: remove x


src/models.py (1 line):
	- line 428: if target == 'rhs' or target == 'lhs': #TODO: extend to other models