Teacher:Given the following Catalan sentence, indicate the name entities (i.e., the real-world objects such as a person, location, organization, etc. that can be denoted with a proper name) such as 'New York Times'.  For each words of a named-entity, indicate their type 'LOC' or 'ORG' or 'PER', where 'LOC' indicates a location entity (such as 'New York City', 'ORG' indicates the token of an organization (such as 'Amazon'), 'PER' indicates the tokens of a person entity (such as 'Jeff Bezos'). Named entities with other types should be indicated with 'MISC'. To indicate boundaries of an entity, use IOB (Inside-Output-Begin) prefixes. The B- prefix before a tag indicates that the word is the beginning of a named entity. The I- prefix indicates that the word is inside a bigger chunk. For example, you can break 'New York' to 'New' and 'York.' and tag them as 'B-LOC' and 'I-LOC'. Any token that doesn't belong to a named entity must be tagged with 'O'. 
Teacher: Now, understand the problem? Solve this instance: L' Hospital Arnau de Vilanova ha detectat avui un nou cas de colonització d' un bacteri en un pacient ingressat en una Unitat de Cures Intensives del centre .
Student:
L' (O) Hospital (B-ORG) Arnau (I-ORG) de (I-ORG) Vilanova (I-ORG) ha (O) detectat (O) avui (O) un (O) nou (O) cas (O) de (O) colonització (O) d' (O) un (O) bacteri (O) en (O) un (O) pacient (O) ingressat (O) en (O) una (O) Unitat (B-LOC) de (I-LOC) Cures (I-LOC) Intensives (I-LOC) del (O) centre (O) . (O)