person_id,survey_date,assigned_gender_at_birth,birth_date,ml_tapwater,perc_tapwater,consume_tapwater_date,weight_kg_at_survey_date,blood_donation_freq_class,non_water_exposure_y1_0n,fed_most_infancy,mom_person_ID,mom_perc_tap_at_birth,num_child,child_birth_date_1,child_fed_most_1,child_birth_date_2,child_fed_most_2,child_birth_date_3,child_fed_most_3,child_birth_date_4,child_fed_most_4,child_birth_date_5,child_fed_most_5,child_birth_date_6,child_fed_most_6
1,12/1/2022,Female,10/1/1996,,0.9,10/1/1996,70,,,,,,0,,,,,,,,,,,,
1,12/1/2022,Female,10/1/1996,,0.7,1/1/2003,70,,,,,,0,,,,,,,,,,,,
1,12/1/2022,Female,10/1/1996,,0.1,1/1/2010,70,,,,,,0,,,,,,,,,,,,
2,12/1/2022,Male,6/1/1980,,0.9,6/1/1980,90,,,,,,0,,,,,,,,,,,,
2,12/1/2022,Male,6/1/1980,,0.6,1/1/2018,90,,,,,,0,,,,,,,,,,,,
3,12/1/2022,Female,2/1/1982,,0.9,2/1/1982,75,,,,,,2,5/1/2019,breast milk,7/1/2021,tap water,,,,,,,,
3,12/1/2022,Female,2/1/1982,,0.1,8/1/2020,75,,,,,,2,5/1/2019,breast milk,7/1/2021,tap water,,,,,,,,
4,12/1/2022,Female,5/1/2019,,0.9,5/1/2019,18,,,breast milk,3,0.9,0,,,,,,,,,,,,
4,12/1/2022,Female,5/1/2019,,0.1,8/1/2020,18,,,breast milk,3,0.9,0,,,,,,,,,,,,
5,12/1/2022,Male,7/1/2021,,0.1,7/1/2021,12,,,tap water,3,0.1,0,,,,,,,,,,,,
6,12/1/2022,Male,4/1/2010,,0.9,4/1/2010,40,,,,,,,,,,,,,,,,,,
6,12/1/2022,Male,4/1/2010,,0.2,11/1/2018,40,,,,,,,,,,,,,,,,,,
6,12/1/2022,Male,4/1/2010,,0.4,9/1/2015,40,,,,,,,,,,,,,,,,,,