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Elements of the group are displayed as words in the presentation $\langle a, b, c, d \mid a^{2}=b^{2}=d^{12}=[a,b]=[a,d]=[b,d]=1, c^{28}=d^{6}, c^{a}=c^{15}, c^{b}=c^{13}, d^{c}=d^{11} \rangle$ .
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