''' Purpose: better experience functional development

    Email id: 
    Email id:
    

    Pledge: All effort for this assignment has been done as team and when both
            the driver and navigator are present and working together
'''

# necessary import
import math         # pi assistance

def beans( a, b, v ) :
    ''' Function beans( a, b, v ): returns an estimate of number of
            beans in a jelly bear jar of volume v, where the beans are
            on average a in length and b in height.

        Driver:
        Navigator:
    '''

    pass




# --------------------------------------------------------------------

def manhattan_distance( a1, s1, a2, s2 ) :
    ''' Function manhattan_distance( a1, s1, a2, s2 ): returns the
            approximate distance in miles between a person at the corner
            avenue a1 and street s1 in Manhattan and a person at the
            corner of avenue a2 and street s2 also in Manhattan.

        Driver:
        Navigator:
    '''

    pass



# --------------------------------------------------------------------

def relate( x, y ) :
    ''' Function relate( x, y ): returns 'comes before', 'is equal to',
            or 'comes after', depending on the alphabetical relationship
            between strings x and y .

        Driver:
        Navigator:
    '''

    pass




# --------------------------------------------------------------------

def youngest( y ) :
    ''' Function youngest( y ): returns the youngest acceptable integer age for
            a y-year old to date; i.e., the age must be at least seven years
            older than half of a y-year old

        Driver:
        Navigator:
    '''

    pass



# --------------------------------------------------------------------

def is_dateable( y1, y2 ) :
    ''' Function is_dateable( y1, y2 ): returns True or False whether
            a y2-year old is an acceptably-aged date for a y1-year old.

        Driver:
        Navigator:
    '''

    pass



# --------------------------------------------------------------------

def mutually_dateable( y1, y2 ) :
    ''' Function mutually_dateable( y1, y2 ): returns True or False
            whether both a y2-year old is an acceptably-aged date
            for a y1-year old and vice-versa.

        Driver:
        Navigator:
    '''

    pass




# --------------------------------------------------------------------

def check_out( dataset, v ) :
    ''' Function check_out( dataset, v ): returns a list whose elements 
            are the number of occurences of v for the corresponding row of
            the dataset

        Driver:
        Navigator:
    '''

    pass