Interactive answer boxes for user search queries

A method performed by data processing apparatus, the method comprising:

• receiving, by a user device and in response to submission of a query, an answer box for the query and a plurality of display cards for the answer box, each display card including a respective type of content related to the query;
• presenting, by the user device and within the answer box, a first display card having a first type of content related to the query;
• determining, by the user device, that a user interaction with the answer box has occurred;
• and
• in response to determining that the user interaction has occurred, presenting, by the user device and within the answer box, a second display card having a second type of content different from the first type of content, wherein the second display card was not presented prior to the user interaction.

A system, comprising:

• a data processing apparatus;
• and
• a memory storage apparatus in data communication with the data processing apparatus, the memory storage apparatus storing instructions executable by the data processing apparatus and that upon such execution cause the data processing apparatus to perform operations comprising:
• receiving, by a user device and in response to submission of a query, an answer box for the query and a plurality of display cards for the answer box, each display card including a respective type of content related to the query;
• presenting, by the user device and within the answer box, a first display card having a first type of content related to the query;
• determining, by the user device, that a user interaction with the answer box has occurred;
• and
• in response to determining that the user interaction has occurred, presenting, by the user device and within the answer box, a second display card having a second type of content different from the first type of content, wherein the second display card was not presented prior to the user interaction.

A non-transitory computer storage medium encoded with a computer program, the program comprising instructions that when executed by a data processing apparatus cause the data processing apparatus to perform operations comprising:

• receiving, by a user device and in response to submission of a query, an answer box for the query and a plurality of display cards for the answer box, each display card including a respective type of content related to the query;
• presenting, by the user device and within the answer box, a first display card having a first type of content related to the query;
• determining, by the user device, that a user interaction with the answer box has occurred;
• and
• in response to determining that the user interaction has occurred, presenting, by the user device and within the answer box, a second display card having a second type of content different from the first type of content, wherein the second display card was not presented prior to the user interaction.