Ambiguity at many levels Homophones: blew and blue Word senses: bank (finance or river?) Part of speech: chair (noun or verb?) Syntactic structure: I saw a girl with a telescope We’ll look into this in more detail! Quantifier scope: Every child loves some movie Multiple: I saw her duck Reference: John dropped the goblet onto the glass table and it broke. Discourse: The meeting is canceled. Emily isn’t coming to the office today. How can we model ambiguity, and choose the correct analysis in context?