PAD = 0
EOS = 1
BOS = 2
UNK = 3

UNK_WORD = '<unk>'
PAD_WORD = '<pad>'
BOS_WORD = '<s>'
EOS_WORD = '</s>'

NEG_INF = -10000  # -float('inf')
PAD = 0
EOS = 1
BOS = 2
UNK = 3

UNK_WORD = '<unk>'
PAD_WORD = '<pad>'
BOS_WORD = '<s>'
EOS_WORD = '</s>'

NEG_INF = -10000  # -float('inf')
# -float('inf')