This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.

[Q]: Passage: In the county, the population was spread out with 34.20% under the age of 18, 9.80% from 18 to 24, 26.30% from 25 to 44, 19.40% from 45 to 64, and 10.40% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 104.50 males. For every 100 females age 18 and over, there were 102.10 males.
Question: Which age group had the least people?
[A]: span


[Q]: Passage: There were 88,296 households out of which 29.5% had children under the age of 18 living with them, 53.3% were Marriage living together, 9.1% had a female householder with no husband present, and 33.4% were non-families. 26.1% of all households were made up of individuals, 31.5% of households had individuals under 18 years, and 9.5% had someone living alone who was 65 years of age or older.  The average household size was 2.44 and the average family size was 2.96.
Question: How many in percent of households were in a Marriage and not living together?
[A]: number


[Q]: Passage: On 19 April 1918, Detachment Brandenstein took over the town of Lahti. The German troops advanced from the east-southeast via Nastola, through the Mustankallio graveyard in Salpausselkä and the Russian garrisons at Hennala. The battle was minor but strategically important as it cut the connection between the western and eastern Red Guards. Local engagements broke out in the town and the surrounding area between 22 April and 1 May 1918 as several thousand western Red Guards and Red civilian refugees tried to push through on their way to Russia. The German troops were able to hold major parts of the town and halt the Red advance. In total, 600 Reds and 80 German soldiers perished, and 30,000 Reds were captured in and around Lahti.
Question: How many days after Detachment Brandenstein took over the town of Lahti did local engagements break out in the town?
[A]:
number