In this assignment, you will use functional programming in Kotlin.

**Objective**: Respond to user questions about the commonality of baby names in the United States over the period 2000-2009. The data is divided into two categories: boys and girls, according to their assigned gender at birth.

**Data Format**:
```
1,Jacob,34471,Emily,25953
2,Michael,32035,Hannah,23080
3,Matthew,28572,Madison,19967
4,Joshua,27538,Ashley,17997
5,Christopher,24931,Sarah,17697
6,Nicholas,24652,Alexis,17629
7,Andrew,23639,Samantha,17266
8,Joseph,22825,Jessica,15709
9,Daniel,22312,Elizabeth,15094
10,Tyler,21503,Taylor,15078
```

**Columns**:
- Row number: The data is sorted numerically, so the most common names for each assigned gender are in row 1.
- Boy name
- Boy frequency
- Girl name
- Girl frequency

**Task**:
1. Read the data files into two data structures: one containing boys' names and one containing girls' names.
2. From the command line, read a set of names (case insensitive) and show information about each name in the set, for each assigned gender.

**Example Command**:
```
UNIX> java -jar hw4.jar Aaron Devon Marlen
```

**Sample Output**:
```
Aaron
Boy Aaron 2 19088 0.5524
alphabetic position 1

Devon
Boy Devon 2 5695 0.1648
alphabetic position 284
Girl Devon 2 665 0.0234
alphabetic position 317

Marlen
Girl Marlen 1 212 0.0074
alphabetic position 760
```

**Requirements**:
- Your output must contain at least the information in the sample above.
- Your program must present data for all of 2000-2009.
- You may not use loops except for the one provided in the assignment.
- With one exception, no variables can be defined using "var". Specifically, if you create a "NameHolder" class, the data items holding the number of uses and the number of years in use can both be "var".
- You may use `MutableList` for storing data, but use it carefully.
- Make liberal use of functional constructs in Kotlin: `forEach`, `map`, `filter`, etc., to avoid using loops or recursion.
- While defining and using classes is not required, it is encouraged. Avoid leaving all data in the list of String representations returned by `readURL`. Doing so may result in a poor grade.
- Do not write your own list class. Use the Kotlin `List`. Utilize functions defined on lists like `map`, `filter`, and `forEach`.