_ī ⇌ t_rum / X*[-spread -labdent]_u_
http://lila-erc.eu/data/lexicalResources/prinparlat/id/pattern_875 <http://lila-erc.eu/ontologies/prinparlat/Pattern>
_ī ⇌ t_rum / X*[-spread -labdent]_u_
_ī ⇌ t_rum / X*[-spread -labdent]_u_