Table with clusters

id	ann
1	miRNA:microRNA_30c-1, microRNA_30c-2
3	tRNA:chrX.tRNA4-ValTAC
4	tRNA:chr6.tRNA136-ValAAC, chr3.tRNA2-ValAAC, chr1.tRNA98-ValCAC, chr6.tRNA139-ValAAC, chr5.tRNA2-ValCAC, chr1.tRNA90-ValCAC