A method performed by a user device, the method comprising: displaying, on a display of the user device, a user interface environment for a telephone dialing application, the user interface environment including a query input field and a search result display field; in response to a query provided as input in the query input field, sending, by the telephone dialing application, the query to a search system; receiving and displaying, by the dialing application, search results responsive to the query, each search result identifying a respective entity determined to be responsive to the query, wherein: a first search result of the search results is initially displayed in a knowledge panel format that provides data describing a first set of fact types for the respective entity determined identified by the first search result; and each remaining search result of the search result is initially displayed in a summary format that provides data describing a second set of fact types for the respective entity identified by the remaining search result, and wherein the second set of fact types is a proper subset of the first set of fact types and comprises name and location data for the respective entity; receiving, by the dialing application, an expansion selection of one of the remaining search results, and in response: transforming the display of the first search result from the knowledge panel format to the summary format; and transforming the display of the one of the remaining search results from the summary panel format to the knowledge panel format; and receiving a dial selection of one of the search results and in response placing, by the dialing application, a voice call from the data processing device to the respective entity identified by the one of the search results. displaying, on a display of the user device, a user interface environment for a telephone dialing application, the user interface environment including a query input field and a search result display field; in response to a query provided as input in the query input field, sending, by the telephone dialing application, the query to a search system; receiving and displaying, by the dialing application, search results responsive to the query, each search result identifying a respective entity determined to be responsive to the query, wherein: a first search result of the search results is initially displayed in a knowledge panel format that provides data describing a first set of fact types for the respective entity determined identified by the first search result; and each remaining search result of the search result is initially displayed in a summary format that provides data describing a second set of fact types for the respective entity identified by the remaining search result, and wherein the second set of fact types is a proper subset of the first set of fact types and comprises name and location data for the respective entity; a first search result of the search results is initially displayed in a knowledge panel format that provides data describing a first set of fact types for the respective entity determined identified by the first search result; and each remaining search result of the search result is initially displayed in a summary format that provides data describing a second set of fact types for the respective entity identified by the remaining search result, and wherein the second set of fact types is a proper subset of the first set of fact types and comprises name and location data for the respective entity; receiving, by the dialing application, an expansion selection of one of the remaining search results, and in response: transforming the display of the first search result from the knowledge panel format to the summary format; and transforming the display of the one of the remaining search results from the summary panel format to the knowledge panel format; and transforming the display of the first search result from the knowledge panel format to the summary format; and transforming the display of the one of the remaining search results from the summary panel format to the knowledge panel format; and receiving a dial selection of one of the search results and in response placing, by the dialing application, a voice call from the data processing device to the respective entity identified by the one of the search results.