--- /dev/null
+SEQ_NAME: test1
+SEQ: tgtacgtagctagctagctagctagctagctagctagctagctgactatcgtgatcgtg
+SEQ_LEN: 59
+---
+SEQ_NAME: test1_100
+SEQ: tgtacgtagctagctagctagctagctagctagctagctagctgactatcgtgatcgtg
+SEQ_LEN: 59
+---
+SEQ_NAME: test1_2
+SEQ: tgtacgtagctagctagctagctagcGagctagctagcAagctgactatcgtgatcgtg
+SEQ_LEN: 59
+---
+SEQ_NAME: test2
+SEQ: ggttgtgtgtgtgtatcgatgtagtctacatcgtctatctgtactgacttactgactac
+SEQ_LEN: 59
+---
+SEQ_NAME: test2_100
+SEQ: ggttgtgtgtgtgtatcgatgtagtctacatcgtctatctgtactgacttactgactac
+SEQ_LEN: 59
+---
+SEQ_NAME: test2_1
+SEQ: ggtAgtgtgtgAgtatcgatgtagtctacatcgtctatctgtactgacttactgactac
+SEQ_LEN: 59
+---
+SEQ_NAME: test1_rc
+SEQ: cacgatcacgatagtcagctagctagctagctagctagctagctagctagctacgtaca
+SEQ_LEN: 59
+---
+REC_TYPE: USEARCH
+Q_ID: test1
+S_ID: test1_rc
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: -
+---
+REC_TYPE: USEARCH
+Q_ID: test1
+S_ID: test1
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test1
+S_ID: test1_100
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test1_100
+S_ID: test1_rc
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: -
+---
+REC_TYPE: USEARCH
+Q_ID: test1_100
+S_ID: test1
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test1_100
+S_ID: test1_100
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test1_2
+S_ID: test1_2
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test2
+S_ID: test2
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test2
+S_ID: test2_100
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test2_100
+S_ID: test2
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test2_100
+S_ID: test2_100
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test2_1
+S_ID: test2_1
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---
+REC_TYPE: USEARCH
+Q_ID: test1_rc
+S_ID: test1
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: -
+---
+REC_TYPE: USEARCH
+Q_ID: test1_rc
+S_ID: test1_100
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: -
+---
+REC_TYPE: USEARCH
+Q_ID: test1_rc
+S_ID: test1_rc
+IDENT: 100.0
+ALIGN_LEN: 59
+MISMATCHES: 0
+GAPS: 0
+Q_BEG: 0
+Q_END: 58
+S_BEG: 0
+S_END: 58
+E_VAL: *
+SCORE: *
+STRAND: +
+---