def _filter_special(text):
	"""
		Remove special characters from a str
	Args:
		text: str
	Return:
		lowercase str ascii-friendly
	"""
	text = text.lower()
	text = ''.join([i for i in text if not i.isdigit()])
	text = text.translate({ord(c): 'a' for c in 'áàäâ'})
	text = text.translate({ord(c): 'e' for c in 'éèëê'})
	text = text.translate({ord(c): 'i' for c in 'íìïî'})
	text = text.translate({ord(c): 'o' for c in 'óòöô'})
	text = text.translate({ord(c): 'u' for c in 'úùüû'})
	text = text.replace('ñ', 'n')
	text = text.replace('\n', '')
	text = text.replace('.', '')
	# text = re.sub(r"[^a-zA-Z0-9]+", ' ', text)
	return text