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Elements of the group are displayed as words in the presentation $\langle a, b, c, d \mid b^{2}=c^{42}=d^{8}=[a,b]=[b,d]=1, a^{2}=d^{4}, c^{a}=cd^{4}, d^{a}=d^{7}, c^{b}=c^{13}d^{4}, d^{c}=d^{5} \rangle$ .
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