modifying frames api

dip_src/valency/frame.py

@@ -73,7 +73,7 @@ class Slot():
     # It consists of different tokens.
     def __init__(self, functor, tids=None, count=None):
         self.functor = functor
-        self.tids = tids or []
+        self.tids = tids or []  # combining multiple sentences vertically
         self.count = count or 1
 
     def to_string(self):

dip_src/valency/reduce_functions.py

@@ -10,6 +10,9 @@ log = logging.getLogger(__name__)
 
 SENSE_UNDEFINED = "nedefinirano"
 
+## TIDI: use frame.py
+## TODO: build a list of [Frame] with lists of [Slot]
+
 
 def sorted_by_len_tids(frames):
     return sorted(