Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; DGS; German Sign Language ; Spoken language ; Case study (psycholing.) ; Slip of the hand ; Slip of the tongue ; Speech production (psycholing.) ; Word frequency effect (psycholing.) ; Versprecherhäufigkeit; Speech error rate; Frequency (psycholing.) ; Error analysis (language acquisition)