def load(path_input):
sentences = []
sentence = []
with codecs.open(path_input,'r', 'utf8') as f:
lines = f.readlines()
for line in lines:
if line == '\n':
sentences.append(sentence)
sentence = []
continue
parts = line.strip().split('\t')
word = Word(parts[0], parts[1]) # punctuation head is root
word.lemma = parts[2]
word.pos = parts[4]
word.dep = parts[7]
word.head = parts[6]
sentence.append(word)
sentences.append(sentence)
return sentences
