39. The system of claim 31 , the operations further comprising: generating one or more attribute suggestions for the search query, each attribute suggestion identifying an additional attribute associated with first entity type.
39. The system of claim 31 , the operations further comprising: generating one or more attribute suggestions for the search query, each attribute suggestion identifying an additional attribute associated with first entity type. 45. The system of claim 39 , the operations further comprising: in response to a user input indicating that a first attribute suggestion does not match the first search query, generating an additional search query that includes the first search query, the first attribute suggestion, and an operator that indicates that resources including the first attribute suggestion should not be included in search results generated for the additional search query.