-- Database schema
| all_prevalences : ITEM [ TEXT ] primary_key , POPULATION TYPE [ TEXT ] , OCCURRENCES [ INTEGER ] , POPULATION COUNT [ INTEGER ] , PREVALENCE RATE [ REAL ] , PREVALENCE PERCENTAGE [ REAL ] | patients : patient [ TEXT ] primary_key , birthdate [ DATE ] , deathdate [ DATE ] , ssn [ TEXT ] , drivers [ TEXT ] , passport [ TEXT ] , prefix [ TEXT ] , first [ TEXT ] , last [ TEXT ] , suffix [ TEXT ] , maiden [ TEXT ] , marital [ TEXT ] , race [ TEXT ] , ethnicity [ TEXT ] , gender [ TEXT ] , birthplace [ TEXT ] , address [ TEXT ] | encounters : ID [ TEXT ] primary_key , DATE [ DATE ] , PATIENT [ TEXT ] encounters.PATIENT = patients.patient , CODE [ INTEGER ] , DESCRIPTION [ TEXT ] , REASONCODE [ INTEGER ] , REASONDESCRIPTION [ TEXT ] | allergies : START [ TEXT ] , STOP [ TEXT ] , PATIENT [ TEXT ] allergies.PATIENT = patients.patient , ENCOUNTER [ TEXT ] allergies.ENCOUNTER = encounters.ID , CODE [ INTEGER ] , DESCRIPTION [ TEXT ] | careplans : ID [ TEXT ] , START [ DATE ] , STOP [ DATE ] , PATIENT [ TEXT ] careplans.PATIENT = patients.patient , ENCOUNTER [ TEXT ] careplans.ENCOUNTER = encounters.ID , CODE [ REAL ] , DESCRIPTION [ TEXT ] , REASONCODE [ INTEGER ] , REASONDESCRIPTION [ TEXT ] | conditions : START [ DATE ] , STOP [ DATE ] , PATIENT [ TEXT ] conditions.PATIENT = patients.patient , ENCOUNTER [ TEXT ] conditions.ENCOUNTER = encounters.ID , CODE [ INTEGER ] , DESCRIPTION [ TEXT ] conditions.DESCRIPTION = all_prevalences.ITEM | immunizations : DATE [ DATE ] , PATIENT [ TEXT ] immunizations.PATIENT = patients.patient , ENCOUNTER [ TEXT ] immunizations.ENCOUNTER = encounters.ID , CODE [ INTEGER ] , DESCRIPTION [ TEXT ] | medications : START [ DATE ] , STOP [ DATE ] , PATIENT [ TEXT ] medications.PATIENT = patients.patient , ENCOUNTER [ TEXT ] medications.ENCOUNTER = encounters.ID , CODE [ INTEGER ] , DESCRIPTION [ TEXT ] , REASONCODE [ INTEGER ] , REASONDESCRIPTION [ TEXT ] | observations : DATE [ DATE ] , PATIENT [ TEXT ] observations.PATIENT = patients.patient , ENCOUNTER [ TEXT ] observations.ENCOUNTER = encounters.ID , CODE [ TEXT ] , DESCRIPTION [ TEXT ] , VALUE [ REAL ] , UNITS [ TEXT ] | procedures : DATE [ DATE ] , PATIENT [ TEXT ] procedures.PATIENT = patients.patient , ENCOUNTER [ TEXT ] procedures.ENCOUNTER = encounters.ID , CODE [ INTEGER ] , DESCRIPTION [ TEXT ] , REASONCODE [ INTEGER ] , REASONDESCRIPTION [ TEXT ] | claims : ID [ TEXT ] primary_key , PATIENT [ TEXT ] , BILLABLEPERIOD [ DATE ] , ORGANIZATION [ TEXT ] , ENCOUNTER [ TEXT ] , DIAGNOSIS [ TEXT ] , TOTAL [ INTEGER ] |
-- -- The highest Systolic Blood Pressure was observed in which patient? Please give his or her full name.

SELECT T1.first, T1.last FROM patients AS T1 INNER JOIN observations AS T2 ON T1.patient = T2.PATIENT WHERE T2.VALUE = ( SELECT MAX(VALUE) FROM observations WHERE description = 'Systolic Blood Pressure' ) LIMIT 1;