In (m)SUD, the ExtPos feeture must be used with values from the UD upos tagset (see UD guidelines).
pattern { N [ExtPos <> ADJ|ADP|ADV|AUX|CCONJ|DET|INTJ|NOUN|NUM|PART|PRON|PROPN|PUNCT|SCONJ|SYM|VERB|X] }In (m)SUD, the ExtPos feeture must be used with values from the UD upos tagset (see UD guidelines).