sister

tasks/sister.wdl

 	File sister_vcf_gz
 	File sister_vcf_idx
 	File sdf
-	String child_name
+	String family_name
 	String docker
 	String cluster_config
 	String disk_size

workflow.wdl

 			sister_vcf_gz=sample[3],
 			sister_vcf_idx=sample[7],
 			sdf=sdf,
-			child_name=sample[10],
+			family_name=sample[11],
 			cluster_config=cluster_config,
 			disk_size=disk_size
 		}