The consecutively issued queries are obviously related, and one query provides context for the next query. For example, if the Previous Query is [who is michael jordan], and the Current Query is [how tall is he], we can assume that user intent for the Current Query is [how tall is michael jordan]. In this example, the Previous Query provides context for the Current Query, and the Current Query depends on the Previous Query. The Current Query [how tall is he] would have a different meaning if the Previous Query was [how tall is tom cruise].