Sentence

Contains functionality specific to sentences in a tree.

Inherits from: Constituent

A Sentence is a top-level element of a TarsqiTree. It contains a list of
Chunks and Tokens.

Instance variables
    parent     -  a TarsqiTree
    dtrs       -  a list of Chunks and Tokens
    position   -  position in the TarsqiTree parent (first sentence is 0)
    eventList  -  a list of (eLoc, eid) tuples

The eventList variable stores (eLoc, eid) tuples of each tagged event in the sentence,
the eLoc is the location of the event inside the embedding constituent, usually a
chunk).

Public Functions

__init__(self)
Initialize all instance variables to 0, None or the empty list.

isSentence(self)

pp(self, tree=True)
Delegates to self.pretty_print().

pretty_print(self, tree=True, verbose=False, indent=0)
Pretty print the sentence by pretty printing all daughters

set_event_list(self)
Set the value of self.eventList to the list of eLocation-eid tuples
in the sentence. This is used by Slinket.