#Section3, Task 1: Given a list of tagged sentences, build and return
#a dictionary whose keys are words ending in 'ing', where the value
#associated with a w is a *list* of all pos-tags assigned to w anywhere
#in the given sentences.
#Add script for build_ing_dict here:
def build_ing_dict(tag_sent_list):
	ing_dict = {}
	key = 0
	pattern = r'^.*(?:ing)$'

	for s in tag_sent_list:
	#	for sentences in tag_sent_list.sents(s):
			for word in s:


#	for word in range(len(tag_sent_list)):
				if re.match(pattern,word):
					ing_dict[key] = word
					key+=1
	print ing_dict