# nwARGOS example: crown: coc fragment file

    $coc
        7    0    0
        1C1    CT        1    0    1    1    0.000000
        2H11   H1        0    0    1    1    0.150000
        3H12   H1        0    0    1    1    0.150000
        4O     OS        0    0    1    1   -0.600000
        5C2    CT        2    0    1    1    0.000000
        6H21   H1        0    0    1    1    0.150000
        7H22   H1        0    0    1    1    0.150000
        1    4    5
        2    1    3
        6    5    7

Note that the first atom (`C1`) is defined as first link atom, and the fifth atom (`C2`) is defined as second link atom.