question: Who searched for specifically Slavic sub-group of R1a1a -LSB- M17 -RSB- ?
answer: Marcin Woźniak and colleagues
turker_answer: Marcin Woźniak and colleagues searched for a specifically Slavic sub-group of R1a1a -LSB- M17 -RSB- .
rule-based: Marcin Woźniak and colleagues searched for specifically Slavic sub-group of R1a1a -LSB- M17 -RSB- .