extracts names from the node to get 
    counts of miss + cann on both sides

def parse_miss_cann(node, m, c):
    """
    extracts names from the node to get 
    counts of miss + cann on both sides
    """
    if node[2]:
        m1 = node[0]
        m2 = m-node[0]
        c1 = node[1]
        c2 = c-node[1]
    else:
        m1=m-node[0]
        m2=node[0]
        c1=c-node[1]
        c2=node[1]
    
    return m1, c1, m2, c2